CN101932005B - Method and device for reserving and index-mapping dynamic physical uplink control channel resources - Google Patents

Method and device for reserving and index-mapping dynamic physical uplink control channel resources Download PDF

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CN101932005B
CN101932005B CN200910088332.9A CN200910088332A CN101932005B CN 101932005 B CN101932005 B CN 101932005B CN 200910088332 A CN200910088332 A CN 200910088332A CN 101932005 B CN101932005 B CN 101932005B
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component carrier
downlink component
index
dynamic
sub
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CN101932005A (en
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夏树强
米德忠
梁春丽
左志松
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Changshu intellectual property operation center Co.,Ltd.
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows

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Abstract

The invention discloses a method for reserving and index-mapping dynamic physical uplink control channel (PUCCH) resources, which comprises the steps of: dividing the dynamic PUCCH resources required by each downlink component carrier into a plurality of sub-blocks; collocating the size of the dynamic PUCCH resource corresponding to a first sub-block of each downlink component carrier to be greater than or equal to the size of the dynamic PUCCH resource required by an LTE (Long Term Evolution) Rel-8 terminal so as to locate the dynamic PUCCH resource required by the LTE Rel-8 terminal in the first sub-block of the downlink component carrier; mapping and arranging each sub-block in a cross mode according to the index of the downlink component carrier; and calculating the index of the dynamic PUCCH resource corresponding to an i+1th downlink component carrier according to a first control channel unit index of a physical downlink control channel corresponding to the i+1th downlink component carrier on the basis of the allocation. The invention also discloses a device for reserving and index-mapping the dynamic PUCCH resources.

Description

Dynamic physical uplink control channel resources is reserved and the method for index-mapping and device
Technical field
The present invention relates to Long Term Evolution (LTE, Long Term Evolution) in resource reservation technology, particularly relate to method and the device of dynamic physical uplink control channel (PUCCH, Physical Uplink ControlChannel) resource reservation and index-mapping under a kind of large bandwidth.
Background technology
At present, IMT-Advanced (IMT-Advanced, International MobileTelecommunications-Advanced) system can realize the high-speed transfer of data, and has larger power system capacity.Move at low speed, focus cover, the peak rate of IMT-Advanced system can reach 1Gbit/s; When high-speed mobile, wide area cover, the peak rate of IMT-Advanced system can reach 100Mbit/s.
In order to meet senior International Telecommunication Union (ITU-Advanced, InternationalTelecommunication Union-Advanced) requirement, as the senior Long Term Evolution (LTE-Advanced of the evolution standard of LTE, Long Term Evolution-Advanced) system needs to support more Iarge-scale system bandwidth (this bandwidth reaches as high as 100MHz), and needs the existing standard of backward compatibility LTE.On the basis of existing LTE system, the bandwidth of LTE system can be carried out merge to obtain larger bandwidth, this technology is called carrier aggregation (CA, Carrier Aggregation) technology.CA technology can improve IMT-Advanced system the availability of frequency spectrum, to alleviate frequency spectrum resource in short supply, and then optimizes the utilization of frequency spectrum resource.
LTE defines Physical Downlink Control Channel (PDCCH, Physical Downlink ControlChannel) for carrying dispatching distribution and other control informations, and PUCCH is for feeding back the control information of each descending carrier.Each PDCCH is made up of several control channel unit (CCE, Control ChannelElement), and the CCE of each subframe carries out index according to the serial number of time domain after first frequency domain.In order to ensure the control information that base station correctly can receive subscriber equipment (UE) and feeds back, LTE also defines the relation between the CCE index of PUCCH index and PDCCH, and namely CCE index adds that certain side-play amount is PUCCH index.In addition, as shown in Figure 1, in LTE system, PUCCH resource is distributed in the two ends of up-link carrier bandwidth, and Physical Uplink Shared Channel (PUSCH) resource is positioned at the centre of up-link carrier bandwidth, like this, occupied PUCCH resource is not had to may be used for PUSCH transmission.In addition, the TTI in Fig. 1 represents a Transmission Time Interval.
In LTE-Advanced system, the component carrier number of uplink and downlink may be different, is also upper and lower behavior asymmetric carrier aggregation, in this case then needs to reserve dynamic PUCCH resource for multiple downlink component carrier on single upstream components carrier wave.
Current, in LTE-Advanced system, a kind of method of reserved dynamic PUCCH resource for: the dynamic PUCCH resource needed for each downlink component carrier is divided into multiple part according to downlink component carrier, the downlink component carrier that different piece is corresponding different.Such as, as shown in Figure 2, downlink component carrier has three, then dynamic PUCCH resource is divided into three parts, and Part I is the dynamic PUCCCH resource mapping region of downlink component carrier 1, and the rest may be inferred for other.Here it should be noted that, because the dynamic PUCCH resource being distributed in up-link carrier bandwidth two ends is symmetrical, the downlink component carrier that therefore the dynamic PUCCH resource at two ends is corresponding is also symmetrical, and this point is equally applicable to the present invention being hereafter about to describe.Above-mentioned this Measures compare is simple, and LTE version-8 (Rel-8 in the compatible LTE-Advanced system of energy, Release-8) terminal, but the size dynamic change of the dynamic PUCCH resource needed for each downlink component carrier, and PUSCH resource adopts continuous dispensing mode, so then can there is a large amount of dynamically PUCCH resource and can not be used for PUSCH transmission and then cause the problem of the wasting of resources.Another kind method for: the dynamic PUCCH resource needed for each downlink component carrier adopts the method for obligating resource of block interleaving on upstream components carrier wave, OFDM (OFDM) symbol taken according to PDCCH by the dynamic PUCCH resource needed for each downlink component carrier is divided into multiple sub-block, and these sub-blocks is arranged according to downlink component carrier index interlace map.Such as, as shown in Figure 3, the dynamic PUCCH resource needed for downlink component carrier 1,2,3 is respectively divided into 3 sub-blocks, and the sequencing interlace map of these sub-blocks according to downlink component carrier index and downlink component carrier is arranged.This method, compared with foregoing first method, can save the dynamic PUCCH resource of a part under certain condition for PUSCH transmission.Such as, the size of the dynamic PUCCH resource needed for downlink component carrier 3 is just in time positioned at first sub-block (i.e. from top to bottom or from the bottom up number of downlink component carrier 3, first dynamic PUCCH resource mapping area of downlink component carrier 3) in, so then dynamic PUCCH resource corresponding for the 3rd sub-block (namely near the dynamic PUCCH resource mapping area of the downlink component carrier 3 of PUSCH) of saving can be used for PUSCH transmission.But, this method also has following shortcoming: due to the number of each sub-block fix, all identical and sub-block of the size of each sub-block is staggered, the CCE index-mapping relation of PUCCH index and PDCCH can be caused like this not to be suitable for LTE Rel-8 terminal in LTE-Advanced system, that is incompatible LTERel-8 terminal of this method.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of dynamic PUCCH resource to reserve and the method for index-mapping and device, can compatible LTE Rel-8 terminal.
For achieving the above object, technical scheme of the present invention is achieved in that
Dynamic PUCCH resource reserves the method with index-mapping, comprising:
Dynamic PUCCH resource needed for each downlink component carrier is divided into multiple sub-block, and by the size configure of dynamic PUCCH resource corresponding for first of each downlink component carrier sub-block for being more than or equal to the size of the dynamic PUCCH resource needed for LTERel-8 terminal, the dynamic PUCCH resource needed for LTE Rel-8 terminal to be positioned at first sub-block of downlink component carrier;
Each sub-block described is arranged according to downlink component carrier index interlace map;
Based on above-mentioned configuration, according to first CCE index n of PDCCH corresponding on the i-th+1 downlink component carrier cCE, icalculate the dynamic PUCCH resource index n that the i-th+1 downlink component carrier is corresponding pUCCH, i, wherein, i is downlink component carrier index.
Wherein, described method calculates dynamic PUCCH resource index n corresponding to the i-th+1 downlink component carrier according to formula (a) pUCCH, i:
n PUCCH，i＝n CCE，i+(N PUCCH+i×N 1) (a)
Wherein, n pUCCH, iit is the dynamic PUCHH resource index that the i-th+1 downlink component carrier is corresponding;
N cCE, ibe first CCE index of corresponding PDCCH on the i-th+1 downlink component carrier;
N pUCCHfor semi-static configuration parameter;
I is downlink component carrier index;
N 1it is the size of dynamic PUCCH resource corresponding to first sub-block of the i-th+1 downlink component carrier.
Wherein, described formula (a) is derived according to formula (b) and is obtained:
n PUCCH，i＝(M-i-1)×N p+i×N p+1+n CCE，i+N PUCCH(b)
Wherein, n pUCCH, iit is the dynamic PUCCH resource index that the i-th+1 downlink component carrier is corresponding;
M is the number of downlink component carrier;
I is downlink component carrier index, value is 0,1 ..., M-1;
P is the sub-block index of the i-th+1 downlink component carrier;
N pbe the size of dynamic PUCCH resource corresponding to front p sub-block of the i-th+1 downlink component carrier, wherein N 0=0, and the selection of p meets N p< n cCE, i< N p+1;
N cCE, ibe first CCE index of corresponding PDCCH on the i-th+1 downlink component carrier;
N pUCCHfor semi-static configuration parameter.
Wherein, it is characterized in that, the size of the dynamic PUCCH resource that described sub-block is corresponding is semi-static configuration.
Wherein, the number of described sub-block is static configuration or semi-static configuration.
Dynamic PUCCH resource reserves the device with index-mapping, comprising:
Sub-block configuration module, for the dynamic PUCCH resource needed for each downlink component carrier is divided into multiple sub-block, and by the size configure of dynamic PUCCH resource corresponding for first of each downlink component carrier sub-block for being more than or equal to the size of the dynamic PUCCH resource needed for LTE Rel-8 terminal, the dynamic PUCCH resource needed for LTE Rel-8 terminal to be all positioned at first sub-block of downlink component carrier;
Sub-block arrangement module, for arranging each sub-block described according to downlink component carrier index interlace map; And
Dynamic PUCCH resource index calculation module, for first CCE index n according to physical downlink control channel PDCCH corresponding on the i-th+1 downlink component carrier cCE, icalculate the dynamic PUCCH resource index n that the i-th+1 downlink component carrier is corresponding pUCCH, i, wherein, i is downlink component carrier index.
Wherein, the size of the dynamic PUCCH resource that described sub-block is corresponding is semi-static configuration.
Wherein, the number of described sub-block is static configuration or semi-static configuration.
As can be seen from the above technical solutions, the present invention by the size configure of dynamic PUCCH resource corresponding for first of each downlink component carrier sub-block for being more than or equal to the size of the dynamic PUCCH resource needed for LTE Rel-8 terminal, the dynamic PUCCH resource needed for LTE Rel-8 terminal is made all to be positioned at first sub-block of downlink component carrier, thus obtain being applicable to the PUCCH index of LTE Rel-8 terminal and the CCE index-mapping relation of PDCCH, therefore the present invention can compatible LTE Rel-8 terminal.Further, the number of sub-block of the present invention and dynamic PUCCH resource corresponding to sub-block can be semi-static configurations, therefore can dynamic PUCCH resource needed for each downlink component carrier change and change configuration, thus save more dynamically PUCCH resource and be used for PUSCH transmission.In addition, the present invention is equally applicable to LTE-A terminal.
Accompanying drawing explanation
Fig. 1 is PUCCH resource and PUSCH distribution of resource schematic diagram in LTE system;
The schematic diagram that Fig. 2 reserves for the dynamic PUCCH resource in prior art needed for each downlink component carrier;
The another kind of schematic diagram that Fig. 3 reserves for the dynamic PUCCH resource in prior art needed for each downlink component carrier;
Fig. 4 is that the dynamic PUCCH resource of the present invention reserves the schematic flow sheet with the method for index-mapping;
Fig. 5 is the schematic diagram that the dynamic PUCCH resource of the present invention one specific embodiment is reserved;
Fig. 6 is that the dynamic PUCCH resource of the present invention reserves the structural representation with the device of index-mapping.
Embodiment
Before detailed description technical scheme of the present invention, first introduce the dynamic PUCCH resource of the present invention and reserve the general principle with the method for index-mapping.
First, dynamic PUCCH resource needed for each downlink component carrier still adopts the method for obligating resource of block interleaving on upstream components carrier wave, be specially: first the dynamic PUCCH resource needed for each downlink component carrier is divided into multiple sub-block, and the size of dynamic PUCCH resource corresponding to each sub-block is by the semi-static configuration of high level; Then these sub-blocks are arranged according to downlink component carrier index interlace map.
Further, the sub-block number of each downlink component carrier also can by high-rise static configuration, and namely sub-block number can be fixing; Also can by the semi-static configuration of high level, namely the sub-block number of each downlink component carrier can be change.Wherein, high level refers to wireless heterogeneous networks (RRC) layer.
Although the present invention also uses the method for obligating resource of block interleaving, but compared with prior art, there is following difference: dynamic PUCCH resource corresponding to sub-block of the present invention is semi-static configuration, therefore can dynamic PUCCH resource needed for each downlink component carrier change and change configuration, thus more dynamically PUCCH resource can be saved be used for PUSCH transmission; In addition, the number of sub-block also can be semi-static configuration, therefore also can save dynamic PUCCH resource under certain condition for PUSCH transmission.
In addition, it should be noted that, the sub-block number of different downlink component carrier should be identical, and the sub-block size of the same index of different downlink component carrier also should be identical.Such as, suppose existence two downlink component carriers 1,2, if the dynamic PUCCH resource needed for downlink component carrier is divided into three sub-blocks, then the dynamic PUCCH resource needed for downlink component carrier 2 also should be divided into three sub-blocks; In addition, the size of first sub-block of downlink component carrier 1,2 should be identical, other the like.Above-mentioned requirements is specified by existing protocol, is about to the prerequisite of the formula (1) described below being.
Reserved with on relevant configuration basis in above-mentioned dynamic PUCCH resource, according to existing protocol, in LTE-Advanced system, for different terminals, calculate dynamic PUCCH resource index n corresponding to the i-th+1 downlink component carrier according to formula (1) pUCCH, i:
n PUCCH，i＝(M-i-1)×N p+i×N p+1+n CCE，i+N PUCCH(1)
Wherein, n pUCCH, iit is the dynamic PUCCH resource index that the i-th+1 downlink component carrier is corresponding;
M is the number of downlink component carrier;
I is downlink component carrier index, value is 0,1 ..., M-1;
P is the sub-block index of the i-th+1 downlink component carrier; Such as certain downlink component carrier is to there being 3 sub-blocks, then the value of p is 0,1,2,3; Wherein p is the starting point of 0 expression sub-block, and p is 1 expression, first sub-block, and the rest may be inferred for other;
N pbe the size of dynamic PUCCH resource corresponding to front p sub-block of the i-th+1 downlink component carrier, N pobtained by the size of dynamic PUCCH resource corresponding to each sub-block of the semi-static configuration of high level, wherein N 0=0, and the selection of p should meet N p< n cCE, i< N p+1, and when p for 0 time show that the dynamic PUCCH resource needed for the i-th+1 downlink component carrier is positioned at first sub-block;
N cCE, ibe first CCE index of corresponding PDCCH on the i-th+1 downlink component carrier;
N pUCCHfor the semi-static configuration parameter configured by high level.
Formula (1) is in LTE-Advanced system, and different terminals calculates dynamic PUCCH resource index n pUCCH, igeneral formula, but this formula is not suitable for the LTE Rel-8 terminal in LTE-Advanced system, equals CCE index add this requirement of certain side-play amount because this formula (1) does not meet dynamic PUCCH resource index.
For this reason, the present invention makes following improvement: when the size of dynamic PUCCH resource corresponding to each sub-block of the semi-static configuration of high level, by the size configure of dynamic PUCCH resource corresponding for first of each downlink component carrier sub-block for being more than or equal to the size of the dynamic PUCCH resource needed for LTE Rel-8 terminal, thus the dynamic PUCCH resource needed for LTE Rel-8 terminal is all positioned at first sub-block of downlink component carrier.
Wherein, first sub-block that dynamic PUCCH resource needed for LTE Rel-8 terminal is all positioned at downlink component carrier is specially: suppose existence two LTE Rel-8 terminals and two downlink component carriers, then the dynamic PUCCH resource needed for first LTE Rel-8 terminal can be positioned at first sub-block of one of them downlink component carrier, be also like this concerning second LTE Rel-8 terminal.This is prior art, does not repeat them here.In addition, if the dynamic PUCCH resource needed for all LTE Rel-8 terminals to be all positioned at first sub-block of same downlink component carrier, then need the size configure of dynamic PUCCH resource corresponding for first of downlink component carrier sub-block as being more than or equal to the size of the dynamic PUCCH resource needed for LTE Rel-8 terminal, so both met the requirement of these LTE Rel-8 terminals existing, and when LTE Rel-8 terminal increases in real process, the dynamic PUCCH resource needed for more LTE Rel-8 terminals can be held.
Based on above-mentioned improvement, because required dynamic PUCCH resource is positioned at first sub-block, therefore p equals 0, thus can obtain formula (2):
n PUCCH，i＝(M-i-1)×N p+i×N p+1+n CCE，i+N PUCCH
＝(M-i-1)×0+i×N 1+n CCE，i+N PUCCH(2)
＝n CCE，i+(N PUCCH+i×N 1)
In formula (2), (N pUCCH+ i × N 1) combination of multiple semi-static configuration parameter for being configured by high level, therefore, formula (2) can be rewritten into formula (3):
n PUCCH，i＝n CCE，i+N (3)
Wherein, N=N pUCCH+ i × N 1.
As can be seen from formula (3), dynamic PUCCH resource index equals CCE index and adds certain side-play amount, therefore the compatible LTE Rel-8 terminal of the present invention's energy, also namely LTE Rel-8 terminal can calculate dynamic PUCCH resource index n corresponding to the i-th+1 downlink component carrier according to formula (2) pUCCH, i.
In addition, it should be noted that, except LTE Rel-8 terminal in LTE-Advanced system, also to there is LTE-A terminal.LTE-Advanced system is based on LTE-A Terminal Design, and therefore formula (1) can be directly applied for LTE-A terminal, and the improvement that the present invention does also is applicable to LTE-A terminal.
As shown in Figure 4, the dynamic PUCCH resource of the present invention is reserved and is comprised the following steps with the method for index-mapping:
Step 401, dynamic PUCCH resource needed for each downlink component carrier is divided into multiple sub-block, and by the size configure of dynamic PUCCH resource corresponding for first of each downlink component carrier sub-block for being more than or equal to the size of the dynamic PUCCH resource needed for LTE Rel-8 terminal, the dynamic PUCCH resource needed for LTE Rel-8 terminal to be all positioned at first sub-block of downlink component carrier.
Wherein, the size of the dynamic PUCCH resource that each sub-block is corresponding is by the semi-static configuration of high level; The number of the sub-block of each downlink component carrier can by high-rise static configuration; Also by the semi-static configuration of high level, can do like this and can save more dynamically PUCCH resource for PUSCH transmission.
Step 402, arranges each sub-block according to downlink component carrier index interlace map.
Step 403, reserved with on relevant configuration basis in above-mentioned dynamic PUCCH resource, according to first CCE index n of PDCCH corresponding on the i-th+1 downlink component carrier cCE, icalculate the dynamic PUCCH resource index n that the i-th+1 downlink component carrier is corresponding pUCCH, i.
Concrete computing formula and formula mentioned above (2):
n PUCCH，i＝n CCE，i+(N PUCCH+i×N 1) (2)
Wherein, n pUCCH, iit is the dynamic PUCHH resource index that the i-th+1 downlink component carrier is corresponding;
N cCE, ibe first CCE index of corresponding PDCCH on the i-th+1 downlink component carrier;
N pUCCHfor the semi-static configuration parameter configured by high level;
I is downlink component carrier index;
N 1it is the size of dynamic PUCCH resource corresponding to first sub-block of the i-th+1 downlink component carrier.
Describe the derivation of formula (2) above in detail, therefore do not repeated them here.
From analyzing above, the dynamic PUCCH resource of the present invention is reserved with the method for index-mapping on the basis being applicable to LTE-A terminal, can keep the compatibility with LTE Rel-8 terminal; Further, when the size variation of the dynamic PUCCH resource needed for each downlink component carrier is larger, more dynamically PUCCH resource can be saved for PUSCH transmission.
Technical scheme of the present invention is further described below by way of a specific embodiment.
Suppose the number M=2 of downlink component carrier, first the dynamic PUCCH resource needed for two downlink component carriers 1,2 is divided into 3 sub-blocks respectively; Again each sub-block is arranged according to downlink component carrier index interlace map, be specially: first sub-block of first placing downlink component carrier 1, then first sub-block of downlink component carrier 2 is placed, afterwards by other sub-blocks placement alternating with each other of each downlink component carrier, as shown in Figure 5.
It should be noted that, for LTE Rel-8 terminal, when the size of semi-static each sub-block of configuration, by the size configure of first of each downlink component carrier sub-block for being more than or equal to the size of the dynamic PUCCH resource needed for LTE Rel-8 terminal, thus the dynamic PUCCH resource needed for LTE Rel-8 terminal is made all to be positioned at first sub-block of downlink component carrier.
Certainly, according to description above, this sub-block is equally also applicable to LTE-A terminal.This refers to: when the dynamic PUCCH resource needed for some LTE-A terminals is just in time positioned at first sub-block of downlink component carrier, then the corresponding dynamically PUCCH resource index of LTE-A terminal can directly use formula (2) to calculate; In addition, dynamic PUCCH resource needed for LTE-A terminal not all in real process is all positioned at first sub-block of downlink component carrier, also the dynamic PUCCH resource namely needed for LTE-A terminal can be positioned at second or the 3rd sub-block of downlink component carrier, in this case, the corresponding dynamically PUCCH resource index of LTE-A terminal then should use formula (1) to calculate.
Suppose that first, second, third sub-block size of downlink component carrier 1,2 is configured to 10,15,20 by high level is semi-static respectively, then have
N 0＝0，N 1＝10，N 2＝10+15＝25，N 3＝10+15+20＝45
A column of figure on the right side of Fig. 5 represents the size of the dynamic PUCCH resource that each sub-block adds up.
Here, the large I of sub-block is configured to different numerical value according to actual needs.
On the basis of above-mentioned resource reservation and relevant configuration, just can obtain dynamic PUCCH resource index corresponding to the different downlink component carriers of different terminals according to the present invention.
For LTE Rel-8 terminal, if its PDCCH is on downlink component carrier 1, and first of corresponding PDCCH CCE index is 8, then meet 0=N 0< n pUCCH, 0=8 < N 1=10, this shows that dynamic PUCCH resource is positioned at first sub-block of downlink component carrier 1, like this, according to formula (2), and the dynamic PUCCH resource index n of downlink component carrier 1 correspondence pUCCH, 0for:
n PUCCH，0＝n CCE，0+0×N 1+N PUCCH
＝n CCE，0+N PUCCH
＝8+N PUCCH
Wherein, first CCE index of corresponding PDCCH can set according to actual needs.
As can be seen from above-mentioned formula, this formula and the index-mapping relationship consistency required by LTE Rel-8 terminal, wherein only need to set different semi-static configuration parameter N according to actual needs pUCCH.
Further illustrate the present invention below in conjunction with above-mentioned specific embodiment to be also suitable for LTE-A terminal.
For LTE-A terminal, if its PDCCH is on downlink component carrier 1, and first of corresponding PDCCH CCE index is 30, then meet 25=N 2< n cCE, 0=30 < N 3=45, this shows that dynamic PUCCH resource is positioned at the 3rd sub-block of downlink component carrier 1, like this, according to formula (1), and the dynamic PUCCH resource index n of downlink component carrier 1 correspondence pUCCH, 0for:
n PUCCH，0＝(M-1-i)×N p+i×N p+1+n CCE，0+N PUCCH
＝(2-1-0)×N 2+0×N 3+n CCE，0+N PUCCH
＝N 2+n CCE，0+N PUCCH
＝25+30+N PUCCH＝55+N PUCCH
Moreover for LTE-A terminal, if its PDCCH is on downlink component carrier 2, and first of corresponding PDCCH CCE index is 12, then meet 10=N 1< n cCE, 1=12 < N 2=25, this shows that dynamic PUCCH resource is positioned at second sub-block of downlink component carrier 2, like this, according to formula (1), and the dynamic PUCCH resource index n of downlink component carrier 2 correspondence pUCCH, 1for:
n PUCCH，1＝(M-1-i)×N p+i×N p+1+n CCE，1+N PUCCH
＝(2-1-1)×N 1+1×N 2+n CCE，1+N PUCCH
＝N 2+n CCE，1+N PUCCH
＝25+12+N PUCCH＝37+N PUCCH
From analyzing above, the dynamic PUCCH resource of the present invention is reserved with the method for index-mapping on the basis being applicable to LTE-A terminal, can keep the compatibility with LTE Rel-8 terminal.
For realizing said method, the present invention is corresponding provides a kind of dynamic PUCCH resource to reserve the device with index-mapping, and as shown in Figure 6, this device comprises:
Sub-block configuration module 60, for the dynamic PUCCH resource needed for each downlink component carrier is divided into multiple sub-block, and by the size configure of dynamic PUCCH resource corresponding for first of each downlink component carrier sub-block for being more than or equal to the size of the dynamic PUCCH resource needed for LTE Rel-8 terminal, the dynamic PUCCH resource needed for LTERel-8 terminal to be all positioned at first sub-block of downlink component carrier;
Sub-block arrangement module 61, for arranging each sub-block according to downlink component carrier index interlace map; And
Dynamic PUCCH resource index calculation module 62, for first control channel unit CCE index n according to physical downlink control channel PDCCH corresponding on the i-th+1 downlink component carrier cCE, icalculate the dynamic PUCCH resource index n that the i-th+1 downlink component carrier is corresponding pUCCH, i, wherein, i is downlink component carrier index.
Wherein, the size of the dynamic PUCCH resource that described sub-block is corresponding is semi-static configuration.
Wherein, the number of described sub-block is static configuration or semi-static configuration.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.

Claims (7)

1. dynamic physical uplink control channel resources reserves the method with index-mapping, and it is characterized in that, the method comprises:
Dynamic physical uplink control channel PUCCH resource needed for each downlink component carrier is divided into multiple sub-block, and by the size configure of dynamic PUCCH resource corresponding for first of each downlink component carrier sub-block for being more than or equal to the size of the dynamic PUCCH resource needed for Long Term Evolution version-8LTE Rel-8 terminal, the dynamic PUCCH resource needed for LTE Rel-8 terminal to be positioned at first sub-block of downlink component carrier;
Each sub-block described is arranged according to downlink component carrier index interlace map;
Based on above-mentioned configuration, according to first control channel unit CCE index n of physical downlink control channel PDCCH corresponding on the i-th+1 downlink component carrier cCE, icalculate the dynamic PUCCH resource index n that the i-th+1 downlink component carrier is corresponding pUCCH, i, wherein, i is downlink component carrier index;
Wherein, when compatible LTE Rel-8 terminal, according to n pUCCH, i=n cCE, i+ (N pUCCH+ i × N 1) calculate dynamic PUCCH resource index n corresponding to the i-th+1 downlink component carrier pUCCH, i;
Wherein, n pUCCH, iit is the dynamic PUCHH resource index that the i-th+1 downlink component carrier is corresponding;
N cCE, ibe first CCE index of corresponding PDCCH on the i-th+1 downlink component carrier;
N pUCCHfor semi-static configuration parameter;
I is downlink component carrier index;
N 1it is the size of dynamic PUCCH resource corresponding to first sub-block of the i-th+1 downlink component carrier.
2. dynamic physical uplink control channel resources according to claim 1 reserves the method with index-mapping, it is characterized in that, described formula n pUCCH, i=n cCE, i+ (N pUCCH+ i × N 1) obtain according to formula (b) derivation:
n PUCCH,i=(M-i-1)×N p+i×N p+1+n CCE,i+N PUCCH（b）
Wherein, n pUCCH, iit is the dynamic PUCCH resource index that the i-th+1 downlink component carrier is corresponding;
M is the number of downlink component carrier;
I is downlink component carrier index, value is 0,1 ..., M-1;
P is the sub-block index of the i-th+1 downlink component carrier;
N pbe the size of dynamic PUCCH resource corresponding to front p sub-block of the i-th+1 downlink component carrier, wherein N 0=0, and the selection of p meets N p<n cCE, i<N p+1;
N cCE, ibe first CCE index of corresponding PDCCH on the i-th+1 downlink component carrier;
N pUCCHfor semi-static configuration parameter.
3. dynamic physical uplink control channel resources according to claim 1 and 2 reserves the method with index-mapping, it is characterized in that, the size of the dynamic PUCCH resource that described sub-block is corresponding is semi-static configuration.
4. dynamic physical uplink control channel resources according to claim 3 reserves the method with index-mapping, it is characterized in that, the number of described sub-block is static configuration or semi-static configuration.
5. dynamic physical uplink control channel resources reserves the device with index-mapping, it is characterized in that, this device comprises:
Sub-block configuration module, for the dynamic PUCCH resource needed for each downlink component carrier is divided into multiple sub-block, and by the size configure of dynamic PUCCH resource corresponding for first of each downlink component carrier sub-block for being more than or equal to the size of the dynamic PUCCH resource needed for LTE Rel-8 terminal, the dynamic PUCCH resource needed for LTE Rel-8 terminal to be all positioned at first sub-block of downlink component carrier;
Sub-block arrangement module, for arranging each sub-block described according to downlink component carrier index interlace map; And
Dynamic PUCCH resource index calculation module, for first CCE index n according to physical downlink control channel PDCCH corresponding on the i-th+1 downlink component carrier cCE, icalculate the dynamic PUCCH resource index n that the i-th+1 downlink component carrier is corresponding pUCCH, i, wherein, i is downlink component carrier index;
Wherein, when compatible LTE Rel-8 terminal, according to n pUCCH, i=n cCE, i+ (N pUCCH+ i × N 1) calculate dynamic PUCCH resource index n corresponding to the i-th+1 downlink component carrier pUCCH, i;
Wherein, n pUCCH, iit is the dynamic PUCHH resource index that the i-th+1 downlink component carrier is corresponding;
N cCE, ibe first CCE index of corresponding PDCCH on the i-th+1 downlink component carrier;
N pUCCHfor semi-static configuration parameter;
I is downlink component carrier index;
N 1it is the size of dynamic PUCCH resource corresponding to first sub-block of the i-th+1 downlink component carrier.
6. dynamic physical uplink control channel resources according to claim 5 reserves the device with index-mapping, it is characterized in that, the size of the dynamic PUCCH resource that described sub-block is corresponding is semi-static configuration.
7. dynamic physical uplink control channel resources according to claim 6 reserves the device with index-mapping, it is characterized in that, the number of described sub-block is static configuration or semi-static configuration.
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