CN103748849A - Transmission method for control channel, base station, and terminal - Google Patents

Transmission method for control channel, base station, and terminal Download PDF

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Publication number
CN103748849A
CN103748849A CN201280007843.3A CN201280007843A CN103748849A CN 103748849 A CN103748849 A CN 103748849A CN 201280007843 A CN201280007843 A CN 201280007843A CN 103748849 A CN103748849 A CN 103748849A
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ereg
resource block
physical resource
control channel
unit
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CN103748849B (en
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刘建琴
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals

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  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Provided are a transmission method for a control channel, a base station, and a terminal. In one aspect, in the embodiments of the present application, by determining at least one physical resource block pair for transmitting a control channel and then determining eREG information used for mapping the control channel in each physical resource block pair according to the aggregation level of the control channel and the eREG corresponding to each eCCE corresponding to the aggregation level, the serial numbers of the eREGs in each of the physical resource block pairs are cyclically arranged towards the resource element corresponding to the edge location in order, with the resource element corresponding to the central location of each of the physical resource block pairs as a starting serial number, and according to the determined eREG information, the control channel is mapped to the eREG corresponding to the determined eREG information, so as to enable the control information borne by the control channel to be sent at the location of the eREG for mapping the control channel.

Description

Transmission method for control channel, base station, and terminal
Control channel transmission method and base station, terminal
Technical fieldthe present application is related to the communication technology, more particularly to control channel transmission method and base station, terminal.Background technology
In wireless communication system such as Long Term Evolution（Long Term Evolution, LTE) system or advanced Long Term Evolution（Long Term Evolution Advanced, LTE-A) in system, introduce the Physical Downlink Control Channel transmitted based on precoding mode（Physical Downlink Control Channel, PDCCH), i.e., enhanced Physical Downlink Control Channel（ Enhanced Physical Downlink Control Channel, ePDCCH ) .EPDCCH can be based on user equipment（User Equipment, UE) specific reference signal is demodulated reference signal（Demodulation Reference Signal, DMRS) demodulate.EPDCCH is transmitted in the region of a sub-frame transmission downstream data channel, and is frequency division with Physical Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH).The channel status that base station can be reported according to terminal, in the preferable Physical Resource Block of channel condition（Physical Resource Block, PRB) on send ePDCCH.Wherein, in a subframe, the Physical Resource Block of two time slots can be referred to as resource block pair（RB pair) ,-as be referred to as Physical Resource Block pair.
However, how not being given at Physical Resource Block centering in the prior art by enhanced resource unit group（Enhanced Resource Element Group, eREG) send or receive the control information that some control channels such as ePDCCH is carried.The content of the invention
The many aspects of the application provide control channel transmission method and base station, terminal, send or receive the control information of some control channels such as ePDCCH carryings by eREG in Physical Resource Block pair to realize.
The one side of the application there is provided a kind of control channel transmission method, including：
It is determined that at least one Physical Resource Block pair for transmitting control channel；
It is corresponding according to the aggregation level of the control channel and the corresponding each eCCE of the aggregation level EREG, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering numbering, using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, sequentially to the corresponding resource unit cycle arrangement of marginal position；According to the eREG information of the determination, the control channel is mapped on the corresponding eREG of eREG information of the determination；
On the eREG position for mapping the control channel, the control information that the control channel ^ is carried is sent.
The another aspect of the application there is provided a kind of control channel transmission method, including：
It is determined that at least one Physical Resource Block pair for transmitting control channel；
According to the corresponding eREG of the corresponding candidate eCCE of candidate's aggregation level Lk and the Lk of the control channel, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering numbering, it is sequentially bad to the corresponding resource unit circulation row of marginal position using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number | J;Wherein, k is integer, and Lk is any one in k candidate's aggregation level；
According to the eREG information of the determination, the corresponding eREG of candidate eCCE corresponding to the Lk is detected, when detecting correct, parsing obtains the control information of the control channel carrying from the detection correct eREG, when detecting incorrect, proceed detection to the corresponding eREG of the corresponding candidate eCCE of other candidate's aggregation levels in the k candidate aggregation level in addition to the Lk.
The one side of the application there is provided a kind of control channel transmission method, including：
It is determined that at least one Physical Resource Block pair for transmitting control channel；
According to the corresponding eREG of the corresponding each eCCE of the aggregation level of the control channel and the aggregation level, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering is to be mapped to each mapping area of Physical Resource Block centering first using first mapping ruler, and the eREG of each mapping area of Physical Resource Block centering second is mapped to using second mapping ruler, first mapping area is made up of the resource unit of transmission data, second mapping area is made up of the resource unit of each Physical Resource Block centering reference signal and/or other control channels mapping；
According to the eREG information of the determination, the control channel is mapped on the corresponding eREG of eREG information of the determination；
On the eREG position for mapping the control channel, the control that the control channel ^ is carried is sent Information.
The another aspect of the application there is provided a kind of control channel transmission method, including：
It is determined that at least one Physical Resource Block pair for transmitting control channel；
According to the corresponding eREG of the corresponding candidate eCCE of candidate's aggregation level Lk and the Lk of the control channel, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering is to be mapped to each mapping area of Physical Resource Block centering first using first mapping ruler, and the eREG of each mapping area of Physical Resource Block centering second is mapped to using second mapping ruler, first mapping area is made up of the resource unit of transmission data, second mapping area is made up of the resource unit of each Physical Resource Block centering reference signal and/or other control channels mapping；Wherein, k is integer, and Lk is any one in k candidate's aggregation level；
According to the eREG information of the determination, the corresponding eREG of candidate eCCE corresponding to the Lk is detected, when detecting correct, parsing obtains the control information of the control channel carrying from the detection correct eREG, when detecting incorrect, proceed detection to the corresponding eREG of the corresponding candidate eCCE of other candidate's aggregation levels in the k candidate aggregation level in addition to the Lk.
The another aspect of the application there is provided a kind of base station, including：
Determining unit, for at least one Physical Resource Block pair for determining to be used to transmit control channel, and the corresponding eREG of the corresponding each eCCE of aggregation level and the aggregation level according to the control channel, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering numbering, using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, sequentially to the corresponding resource unit cycle arrangement of marginal position；Map unit, for the eREG information determined according to the determining unit, the control channel is mapped on the corresponding eREG of eREG information of the determination；
Transmitting element, the position of the eREG for mapping the control channel in the map unit sends the control information of the control channel carrying.
The another aspect of the application there is provided a kind of terminal, including：
Determining unit, it is determined that at least one Physical Resource Block pair for transmitting control channel, and according to the corresponding eREG of the corresponding candidate eCCE of candidate's aggregation level Lk and the Lk of the control channel, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering numbering, it is corresponding with the center of each Physical Resource Block pair Resource unit is as Base Serial Number, sequentially to the corresponding resource unit cycle arrangement of marginal position；Wherein, k is integer, and Lk is any one in k candidate's aggregation level；
Detection unit, for the eREG information determined according to the determining unit, the corresponding eREG of candidate eCCE corresponding to the Lk is detected, when detecting correct, parsing obtains the control information of the control channel carrying from the detection correct eREG, when detecting incorrect, proceed detection to the corresponding eREG of the corresponding candidate eCCE of other candidate's aggregation levels in the k candidate aggregation level in addition to the Lk.
The another aspect of the application there is provided a kind of base station, including：
Determining unit, for at least one Physical Resource Block pair for determining to be used to transmit control channel, and the corresponding eREG of the corresponding each eCCE of aggregation level and the aggregation level according to the control channel, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering is to be mapped to each mapping area of Physical Resource Block centering first using first mapping ruler, and the eREG of each mapping area of Physical Resource Block centering second is mapped to using second mapping ruler, first mapping area is made up of the resource unit of transmission data, second mapping area is made up of the resource unit of each Physical Resource Block centering reference signal and/or other control channels mapping；
Map unit, for the eREG information determined according to the determining unit, the control channel is mapped on the corresponding eREG of eREG information of the determination；
Transmitting element, the position of the eREG for mapping the control channel in the map unit sends the control information of the control channel carrying.
The another aspect of the application there is provided a kind of terminal, including：
Determining unit, for at least one Physical Resource Block pair for determining to be used to transmit control channel, and according to the corresponding eREG of the corresponding candidate eCCE of candidate's aggregation level Lk and the Lk of the control channel, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering is to be mapped to each mapping area of Physical Resource Block centering first using first mapping ruler, and the eREG of each mapping area of Physical Resource Block centering second is mapped to using second mapping ruler, first mapping area is made up of the resource unit of transmission data, second mapping area is made up of the resource unit of each Physical Resource Block centering reference signal and/or other control channels mapping；Wherein, k is integer, and Lk is any one in k candidate's aggregation level； Detection unit, for the eREG information determined according to the determining unit, the corresponding eREG of candidate eCCE corresponding to the Lk is detected, when detecting correct, parsing obtains the control information of the control channel carrying from the detection correct eREG, when detecting incorrect, proceed detection to the corresponding e REG of the corresponding candidate eCCE of other candidate's aggregation levels in the k candidate aggregation level in addition to the Lk.
As shown from the above technical solution, on the one hand, the embodiment of the present application is by determining at least one Physical Resource Block pair for transmitting control channel, and then the corresponding eREG of the corresponding each eCCE of aggregation level and the aggregation level according to the control channel, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering numbering, Base Serial Number is used as using the corresponding resource unit in center of each Physical Resource Block pair, sequentially to the corresponding resource unit cycle arrangement of marginal position, and according to the eREG information of the determination, the control channel is mapped on the corresponding eREG of eREG information of the determination, make it possible on the eREG position for mapping the control channel, send the control information of the control channel carrying, it is achieved thereby that the control information of some control channels such as ePDCCH carryings is sent by eREG in Physical Resource Block pair.
As shown from the above technical solution, on the one hand, the embodiment of the present application is by determining at least one Physical Resource Block pair for transmitting control channel, and then according to the corresponding eREG of the corresponding candidate eCCE of candidate's aggregation level Lk and the Lk of the control channel, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering numbering, Base Serial Number is used as using the corresponding resource unit in center of each Physical Resource Block pair, sequentially to the corresponding resource unit cycle arrangement of marginal position；Wherein, k is integer, Lk is any one in k candidate's aggregation level, make it possible to the eREG information according to the determination, the corresponding eREG of candidate eCCE corresponding to the Lk is detected, when detecting correct, parsing obtains the control information of the control channel carrying from the detection correct eREG, when detecting incorrect, proceed detection to the corresponding eREG of the corresponding candidate eCCE of other candidate's aggregation levels in the k candidate aggregation level in addition to the Lk, it is achieved thereby that the control information of some control channels such as ePDCCH carryings is received by eREG in Physical Resource Block pair.
As shown from the above technical solution, on the other hand, the embodiment of the present application is by determining at least one Physical Resource Block pair for transmitting control channel, and then the corresponding eREG of the corresponding each eCCE of aggregation level and the aggregation level according to the control channel, it is determined that each Physical Resource Block centering is used to map The eREG information of the control channel, the eREG of each Physical Resource Block centering is to be mapped to each mapping area of Physical Resource Block centering first using first mapping ruler, and the eREG of each mapping area of Physical Resource Block centering second is mapped to using second mapping ruler, first mapping area is made up of the resource unit of transmission data, second mapping area is made up of the resource unit of each Physical Resource Block centering reference signal and/or other control channels mapping, and according to the eREG information of the determination, the control channel is mapped on the corresponding eREG of eREG information of the determination, make it possible on the eREG position for mapping the control channel, send the control information of the control channel carrying, it is achieved thereby that the control information of some control channels such as ePDCCH carryings is sent by eREG in Physical Resource Block pair.
As shown from the above technical solution, on the other hand, the embodiment of the present application is by determining at least one Physical Resource Block pair for transmitting control channel, and then according to the corresponding eREG of the corresponding candidate eCCE of candidate's aggregation level Lk and the Lk of the control channel, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering is to be mapped to each mapping area of Physical Resource Block centering first using first mapping ruler, and the eREG of each mapping area of Physical Resource Block centering second is mapped to using second mapping ruler, first mapping area is made up of the resource unit of transmission data, second mapping area is made up of the resource unit of each Physical Resource Block centering reference signal and/or other control channels mapping；Wherein, k is integer, Lk is any one in k candidate's aggregation level, make it possible to the eREG information according to the determination, the corresponding eREG of candidate eCCE corresponding to the Lk is detected, when detecting correct, parsing obtains the control information of the control channel carrying from the detection correct eREG, when detecting incorrect, proceed detection to the corresponding eREG of the corresponding candidate eCCE of other candidate's aggregation levels in the k candidate aggregation level in addition to the Lk, it is achieved thereby that the control information of some control channels such as ePDCCH carryings is received by eREG in Physical Resource Block pair.Brief description of the drawings is in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art, the required accompanying drawing used in embodiment or description of the prior art will be briefly described below, apparently, drawings in the following description are some embodiments of the present application, for those of ordinary skill in the art, without having to pay creative labor, other accompanying drawings can also be obtained according to these accompanying drawings.
The schematic flow sheet for the control channel transmission method that Fig. 1 provides for the embodiment of the application one； Fig. 2 is a position views of the eREG of control channel mapping in the corresponding embodiments of Fig. 1 in Physical Resource Block pair；
Fig. 3 is another location schematic diagrames of the eREG of control channel mapping in the corresponding embodiments of Fig. 1 in Physical Resource Block pair；
Fig. 4 is another location schematic diagrames of the eREG of control channel mapping in the corresponding embodiments of Fig. 1 in Physical Resource Block pair；
Fig. 5 is another location schematic diagrames of the eREG of control channel mapping in the corresponding embodiments of Fig. 1 in Physical Resource Block pair；
Fig. 6 is another location schematic diagrames of the eREG of control channel mapping in the corresponding embodiments of Fig. 1 in Physical Resource Block pair；
The schematic flow sheet for the control channel transmission method that Fig. 7 provides for another embodiment of the application；The schematic flow sheet for the control channel transmission method that Fig. 8 provides for another embodiment of the application；The schematic flow sheet for the control channel transmission method that Fig. 9 provides for another embodiment of the application；The structural representation for the base station that Figure 10 provides for another embodiment of the application；
The structural representation for the terminal that Fig. 11 provides for another embodiment of the application；
The structural representation for the terminal that Figure 12 provides for another embodiment of the application；
The structural representation for the base station that Figure 13 provides for another embodiment of the application；
The structural representation for the terminal that Figure 14 provides for another embodiment of the application.Embodiment is to make the purpose, technical scheme and advantage of the embodiment of the present application clearer, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is some embodiments of the present application, rather than whole embodiments.Based on the embodiment in the application, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of the application protection.
Technical scheme, can apply to the wireless communication systems such as LTE system or lte-a system.Terminal therein can be the user equipment (User Equipment, UE) in LTE system or lte-a system；Base station therein can be the eNB in LTE system or lte-a system.
In addition, the terms " and/or ", only a kind of incidence relation for describing affiliated partner, represents there may be three kinds of relations, for example, A and/or B, can be represented：Individualism A, while there is A And B, individualism B these three situations.In addition, character ' 7 herein " ,-as represent forward-backward correlation object be it is a kind of " or " relation.
In wireless communication system such as Long Term Evolution（Long Term Evolution, LTE) system or advanced Long Term Evolution (Long Term Evolution Advanced, LTE-A) in system, downlink multi-access access way generally uses orthogonal frequency division multiple access (Orthogonal Frequency Division
Multiple Access, OFDMA) mode.The downlink resource of system has been partitioned into OFDM (Orthogonal Frequency Division Multiple, OFDM) symbol from the time, and subcarrier is had been partitioned into from frequency.
One normal descending sub frame, includes two time slots（Slot), each time slot has 7 or 6 OFDM symbols, and a normal descending sub frame contains 14 OFDM symbols or 12 OFDM symbols altogether. LTE
The standards of Release 8/9/10 also define resource block（Resource Block, RB) size, a resource block, comprising 12 subcarriers, is half of subframe duration in time domain on frequency domain（I.e. one time slot）, i.e., comprising 7 or 6 OFDM symbols.In a subframe, a pair of resource blocks of two time slots are referred to as resource block pair（RB pair, RB couples）.In actually sending, the resource block that resource physically is used is to being called Physical Resource Block pair（Physical RB pair, PRB pair), it is further referred to as unit Physical Resource Block.Therefore, follow-up description either PRB, PRB pair or Physical Resource Block or Physical Resource Block pair, all referring to PRB pair.
The various data carried in subframe, are to mark off various physical channels on the physical time-frequency resource of subframe to carry out organising map.Various physical channels can substantially be divided into two classes：Control channel and Traffic Channel.Correspondingly, the data of control channel carrying can be described as control data（It can be generally referred to as control information）, Traffic Channel carrying data can be described as business datum（It can be generally referred to as data）.The basic goal for sending subframe is transmission services data, and the effect of control channel is the transmission for supplementary services data.
In LTE systems, a complete Physical Downlink Control Channel（ Physical Downlink
Control Channel, PDCCH) it may map to one or several control channel units（Control Channel Element, CCE ).One PDCCH can map 1,2,4 or 8 CCE of J, i.e., be made up of 1,2,4 or 8 CCE, and aggregation level 1,2,4,8 is corresponded to respectively.
Due to multi-user's multiple-input and multiple-output (Multiple Input Multiple Output,) and coordinate multipoint (Coordinated Multiple Points MIMO,) etc. CoMP the introducing of technology, introduces the Physical Downlink Control Channel transmitted based on precoding mode（Physical Downlink Control Channel, PDCCH), i.e., enhanced Physical Downlink Control Channel（ Enhanced Physical Downlink Control Channel, ePDCCH ) .EPDCCH can be demodulated reference signal based on UE specific reference signals（Demodulation Reference Signal, DMRS) demodulate.Each ePDCCH still may map to the k logic units for being similar to CCE, this is defined herein as enhancing control channel unit (enhanced Control Channel Element, eCCE), need UE to carry out blind Detecting in end side.The definition of aggregation level in PDCCH is continued to use, aggregation level is L (L=1,2,4 or 8 etc.）EPDCCH then may map to L eCCE, i.e., be made up of L eCCE.One eCCE is made up of one or several eREG.
The schematic flow sheet for the control channel transmission method that Fig. 1 provides for the embodiment of the application one, as shown in Fig. 1.
101st, at least one Physical Resource Block pair for transmitting control channel is determined.
102nd, according to the corresponding eREG of the corresponding each eCCE of the aggregation level of the control channel and the aggregation level, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering numbering, using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, sequentially to the corresponding resource unit cycle arrangement of marginal position.
103rd, according to the eREG information of the determination, the control channel is mapped to the corresponding eREG of eREG information of the determination.
104th, on the eREG position for mapping the control channel, the control information that the control channel ^ is carried is sent.
It should be noted that 101 ~ 104 executive agent can be base station.
Wherein, the control channel is specifically as follows enhanced Physical Downlink Control Channel（Enhanced Physical Downlink Control Channel, ePDCCH ) .
Specifically, in 102, the eREG information of the determination can include eREG numbers and eREG is identified.
Alternatively, in a possible implementation of the present embodiment, each Physical Resource Block is to alternatively, in a possible implementation of the present embodiment, the center of each Physical Resource Block pair can be the center of other resource units of each Physical Resource Block centering in addition to the resource unit that PDCCH maps.
Alternatively, in a possible implementation of the present embodiment, each Physical Resource Block pair In eREG can be made up of at least one resource unit of each Physical Resource Block centering.
Alternatively, in a possible implementation of the present embodiment, the eREG of each Physical Resource Block centering can by each Physical Resource Block centering except reference signal and/or other control letter wherein, the reference signal can include but is not limited to public reference signal（ Common
Reference Signal, CRS), DMRS, channel state information reference signals（Channel Status Information Reference Signal, CSI-RS) and location reference signals (Positioning Reference Signal, PRS) at least one.
Alternatively, in a possible implementation of the present embodiment, in 102, the eREG of each Physical Resource Block centering numbering, can be using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, in the shape of a spiral sequentially to the corresponding resource unit cycle arrangement of marginal position.
Specifically, it can be assumed that the center of each Physical Resource Block pair is（A, b), the number of the resource unit of each Physical Resource Block centering is M.The numbering of the M resource unit can sequentially be incremented by the corresponding resource unit of marginal position arrange in the shape of a spiral, below so that left-hand circular is arranged as an example using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number.Assuming that each Physical Resource Block centering includes N number of eREG, N is the eREG of each Physical Resource Block centering number.
So, it is possible, firstly, to according to (x-n) %N=0, determine the resource unit numbering for the M resource unit that n-th of eREG includes.Wherein, n is the eREG numberings of the eREG in each unit resource cell block, and span is 1 to the integer between N；X is the resource unit numbering in corresponding M resource unit, and span is 1 to the integer between M.
Then, according to 1.Under+1.The right side+2.Upper+2.A left side+3.Under+3.The right side+4.Upper+4.A left side++ knx=x-1, determines n-th of eREG position.Wherein, under n, n is right, n is upper is used as original position using the corresponding resource unit in center with n left representations, sequentially arrange unit resource unit to the corresponding resource unit of marginal position in a counterclockwise direction in the shape of a spiral, nx be meet under n determined by the k of above-mentioned equation, n is right, n is upper and n is left one.
An ancient type of spoon,;¾ ^ 1n T+1n +2n +2n +3 n T+3n +4n +4n +…… +knxThe 1 of=x-1nUnder, 1nThe right side, 2nAbove, 2nA left side, 3nUnder, 3nThe right side, 4nAbove, 4nAnd knxSum in each direction, then can determine resource units of n-th of eREG relative to Centre position deviation, so that it is determined that n-th of eREG position. Below will be with a Physical Resource Block pair（Altogether comprising 168 resource units）12 subcarriers are included on frequency domain, comprising exemplified by 14 OFDM symbols in time domain, its center can be the center of the resource unit of Physical Resource Block centering, i.e. the intermediate value of frequency domain and time domain, in order to simplify statement, the 6th subcarrier is represented in following form, the 7th corresponding resource unit of OFDM symbol, i.e.,（6, 7 ) .Position below can be represented with this form to simplify.
Assuming that the internal eREG numbers of Physical Resource Block are 16, the resource unit numbering in 168 resource units that n-th of eREG includes in 16 eREG can be determined according to (x-n) %16=0.Such as, it can determine that the resource unit numbering X in 1 corresponding 168 resource unit of eREG is respectively 1,17,33,49,65,81,97,113,129,145 and 161 according to the method described above.Then, according to 1nUnder+1nThe right side+2nUpper+2nA left side+3nUnder+3nThe right side+4nUpper+4nLeft+...+knx=x-1, determines the position corresponding to above-mentioned each resource unit X.
Such as, x=1 is substituted into above formula to determine to number the position for the resource unit for being 1, due to not offset relative to center, then can determines that the position for numbering the resource unit for being 1 is（6, 7 )
For another example, x=17 are substituted into above formula to determine to number the position for the resource unit for being 17,1η τ+1ηThe right side+2η ^+2η ^+3η τ+3η *+4η^=17-1, it is 4 relative to the resource unit that center is offset downward, it is 4 relative to the resource unit that center is offset to the right, it is 6 relative to the resource unit that center is offset up, it is 2 relative to the resource unit that center is offset to the left, therefore, then it can determine that the position for numbering the resource unit for being 17 is（4, 9 ) .
For another example, χ=33 are substituted into above formula to determine to number the position for the resource unit for being 33,1η τ+1ηThe right side+2ηUpper+2ηA left side+3ηUnder+3ηThe right side+4ηUpper+4ηA left side+5ηUnder+5ηThe right side+2ηUpper=33-1, it is 9 relative to the resource unit that center is offset downward, it is 9 relative to the resource unit that center is offset to the right, it is 8 relative to the resource unit that center is offset up, it is 6 relative to the resource unit that center is offset to the left, therefore, then it can determine that the position for numbering the resource unit for being 33 is（7, 10 ) .
By that analogy, resource unit of the resource unit relative to Centre position deviation that each eREG includes in 16 eREG can be determined using the above method, so that it is determined that in 16 eREG the resource unit that each eREG includes position, as shown in Figure 2.Fig. 2 shows a Physical Resource Block pair being made up of 168 resource units, each lattice represents a resource unit, the numbering that numbering therein is 16 eREG, to represent the eREG belonging to each resource unit, vertical direction represents frequency domain resource, and horizontal direction represents time-domain resource.
Alternatively, if further considering to deduct the resource unit of DMRS mappings, the above method is utilized Resource unit of the resource unit relative to Centre position deviation that each eREG includes in 16 eREG can be determined, so that it is determined that in 16 eREG the resource unit that each eREG includes position, as shown in figure 3, wherein, the resource unit of horizontal line shadow representation DMRS mappings.Fig. 3 shows one by 168 resource units（Wherein, 24 resource units mapped comprising DMRS, the eREG mapped over these locations and corresponding numbering are deducted）The Physical Resource Block pair of composition, each lattice represents a resource unit, and numbering therein is 16 eREG numbering, to represent the eREG belonging to each resource unit, and vertical direction represents frequency domain resource, and horizontal direction represents time-domain resource.
Alternatively, if further considering to skip 24 resource units of DMRS mappings during eREG mappings, i.e. using each Physical Resource Block to the selected corresponding resource unit in center as Base Serial Number sequentially to the corresponding resource unit cycle arrangement of marginal position, the resource unit for running into DMRS mappings is then skipped.So that it is determined that in 16 eREG the resource unit that each eREG includes position, as shown in Fig. 4, wherein, horizontal line shadow representation DMRS mapping resource unit.Each lattice represents a resource unit, and numbering therein is 16 eREG numbering, to represent the eREG belonging to each resource unit, and vertical direction represents frequency domain resource, and horizontal direction represents time-domain resource.
Below will be with a Physical Resource Block pair（Altogether comprising 168 resource units）, included on frequency domain
12 subcarriers, are included exemplified by 14 OFDM symbols, its center can be the center of other resource units of the Physical Resource Block centering in addition to the resource unit that PDCCH maps in time domain.Similarly, it is still assumed that the internal eREG numbers of Physical Resource Block are 16, resource unit of the resource unit relative to Centre position deviation that each eREG includes in 16 eREG can be determined using the above method, so that it is determined that in 16 eREG the resource unit that each eREG includes position, the eREG and corresponding numbering mapped on 24 resource unit positions of wherein DMRS mappings is deducted, as shown in Figure 5, wherein, the resource unit of horizontal line shadow representation DMRS mappings, diagonal line hatches represent the resource unit of PDCCH mappings.
Alternatively, if further considering to skip 24 resource units of DMRS mappings during eREG mappings, the corresponding resource unit in center of other resource units i.e. using Physical Resource Block centering in addition to the resource unit that PDCCH maps is as Base Serial Number sequentially to the corresponding resource unit cycle arrangement of marginal position, and the resource unit for running into DMRS mappings is then skipped.So that it is determined that in 16 eREG the resource unit that each eREG includes position, as shown in fig. 6, wherein, the resource unit of horizontal line shadow representation DMRS mappings, diagonal line hatches represent the resource unit of PDCCH mappings.Each lattice represents a resource unit, and numbering therein is 16 eREG numbering, to represent each resource list EREG belonging to member, vertical direction represents frequency domain resource, and horizontal direction represents time-domain resource.
The technical scheme using the present embodiment is can be seen that from Fig. 2 Fig. 6, is had the following advantages：EREG as much as possible can be distributed in each OFDM symbol;
Each eREG performance is as equal as possible, i.e. each eREG had both included Physical Resource Block to middle resource unit, also including resource unit of the Physical Resource Block to edge；
Each eREG size approximately equal.
So, if centerized fusion transmission is also using eREG as basic transmitting element, then it ensure that each eREG combines the eCCE to be formed and equally meets above-mentioned three rule.
It is understood that if right-hand circular is arranged, then the equation can be could alternatively be into 1nThe right side+1nUnder+2nA left side+2nUpper+3nThe right side+3nUnder+4nA left side+4.Upper++ knx=x-1, other processes are similar, and here is omitted.
Alternatively, in a possible implementation of the present embodiment, in 102, the eREG of each Physical Resource Block centering numbering, can using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, annularly sequentially to marginal position corresponding resource unit circulation row it is bad ' j.
In the present embodiment, pass through at least one Physical Resource Block pair for determining to be used to transmit control channel, and then the corresponding eREG of the corresponding each eCCE of aggregation level and the aggregation level according to the control channel, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering numbering, Base Serial Number is used as using the corresponding resource unit in center of each Physical Resource Block pair, sequentially to the corresponding resource unit cycle arrangement of marginal position, and according to the eREG information of the determination, the control channel is mapped on the corresponding eREG of eREG information of the determination, make it possible on the eREG position for mapping the control channel, send the control information of the control channel carrying, it is achieved thereby that the control information of some control channels such as ePDCCH carryings is sent by eREG in Physical Resource Block pair.
The schematic flow sheet for the control channel transmission method that Fig. 7 provides for another embodiment of the application, such as schemes
Shown in 7.
701st, at least one Physical Resource Block pair for transmitting control channel is determined.
702nd, according to the corresponding eREG of the corresponding candidate eCCE of candidate's aggregation level Lk and the Lk of the control channel, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering numbering, with each Physical Resource Block pair The corresponding resource unit in center is as Base Serial Number, sequentially to the corresponding resource unit cycle arrangement of marginal position；Wherein, k is integer, and Lk is any one in k candidate's aggregation level.
703rd, according to the eREG information of the determination, the corresponding eREG of candidate eCCE corresponding to the Lk is detected, when detecting correct, parsing obtains the control information of the control channel carrying from the detection correct eREG, when detecting incorrect, proceed detection to the corresponding eREG of the corresponding candidate eCCE of other candidate's aggregation levels in the k candidate aggregation level in addition to the Lk.
It should be noted that 701 ~ 703 executive agent can be terminal.
Specifically, when detecting incorrect, proceed detection to the corresponding eREG of the corresponding candidate eCCE of other candidate's aggregation levels in the k candidate aggregation level in addition to the Lk, untill detection is correct, or untill being finished to all corresponding eREG detections of the corresponding candidate eCCE of candidate's aggregation level.
Wherein, the control channel is specifically as follows enhanced Physical Downlink Control Channel（Enhanced Physical Downlink Control Channel, ePDCCH ) .
Specifically, at 702, the eREG information of the determination can include eREG numbers and eREG is identified.
Alternatively, in a possible implementation of the present embodiment, each Physical Resource Block is to alternatively, in a possible implementation of the present embodiment, the center of each Physical Resource Block pair can be the center of other resource units of each Physical Resource Block centering in addition to the resource unit that PDCCH maps.
Alternatively, in a possible implementation of the present embodiment, the eREG of each Physical Resource Block centering can be made up of at least one resource unit of each Physical Resource Block centering.
Alternatively, in a possible implementation of the present embodiment, the eREG of each Physical Resource Block centering can by each Physical Resource Block centering except reference signal and/or other control letter wherein, the reference signal can include but is not limited to public reference signal（Common Reference Signal, CRS), DMRS, channel state information reference signals（Channel Status Information Reference Signal, CSI-RS) and location reference signals (Positioning Reference Signal, PRS) at least one. Alternatively, in a possible implementation of the present embodiment, at 702, the eREG of each Physical Resource Block centering numbering, can be using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, in the shape of a spiral sequentially to the corresponding resource unit cycle arrangement of marginal position.
Alternatively, in a possible implementation of the present embodiment, at 702, the eREG of each Physical Resource Block centering numbering, can be using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, annularly sequentially to the corresponding resource unit cycle arrangement of marginal position.
The associated description that may refer in the corresponding embodiments of Fig. 1 is described in detail, here is omitted.In the present embodiment, pass through at least one Physical Resource Block pair for determining to be used to transmit control channel, and then according to the corresponding eREG of the corresponding candidate eCCE of candidate's aggregation level Lk and the Lk of the control channel, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering numbering, using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, sequentially to the corresponding resource unit cycle arrangement of marginal position；Wherein, k is integer, Lk is any one in k candidate's aggregation level, make it possible to the eREG information according to the determination, the corresponding eREG of candidate eCCE corresponding to the Lk is detected, when detecting correct, parsing obtains the control information of the control channel carrying from the detection correct eREG, when detecting incorrect, proceed detection to the corresponding eREG of the corresponding candidate eCCE of other candidate's aggregation levels in the k candidate aggregation level in addition to the Lk, it is achieved thereby that the control information of some control channels such as ePDCCH carryings is received by eREG in Physical Resource Block pair.
The schematic flow sheet for the control channel transmission method that Fig. 8 provides for another embodiment of the application, as shown in Figure 8.
801st, at least one Physical Resource Block pair for transmitting control channel is determined.
802, according to the corresponding eREG of the corresponding each eCCE of the aggregation level of the control channel and the aggregation level, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering is to be mapped to each mapping area of Physical Resource Block centering first using first mapping ruler, and the eREG of each mapping area of Physical Resource Block centering second is mapped to using second mapping ruler, first mapping area is made up of the resource unit of transmission data, second mapping area by each Physical Resource Block centering reference signal and/ Or the resource unit composition of other control channels mapping.
803rd, according to the eREG information of the determination, the control channel is mapped on the corresponding eREG of eREG information of the determination.
804th, on the eREG position for mapping the control channel, the control information that the control channel ^ is carried is sent.
It should be noted that 801 ~ 804 executive agent can be base station.
Wherein, the control channel is specifically as follows enhanced Physical Downlink Control Channel（Enhanced Physical Downlink Control Channel, ePDCCH ) .
Specifically, in 802, the eREG information of the determination can include eREG numbers and eREG is identified.
Alternatively, in a possible implementation of the present embodiment, first mapping ruler and second mapping ruler can be with identical, or can also differ, and the present embodiment is to this without limiting.
In the present embodiment, pass through at least one Physical Resource Block pair for determining to be used to transmit control channel, and then the corresponding eREG of the corresponding each eCCE of aggregation level and the aggregation level according to the control channel, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering is to be mapped to each mapping area of Physical Resource Block centering first using first mapping ruler, and the eREG of each mapping area of Physical Resource Block centering second is mapped to using second mapping ruler, first mapping area is made up of the resource unit of transmission data, second mapping area is made up of the resource unit of each Physical Resource Block centering reference signal and/or other control channels mapping, and according to the eREG information of the determination, the control channel is mapped on the corresponding eREG of eREG information of the determination, make it possible on the eREG position for mapping the control channel, send the control information of the control channel carrying, it is achieved thereby that the control information of some control channels such as ePDCCH carryings is sent by eREG in Physical Resource Block pair.
The schematic flow sheet for the control channel transmission method that Fig. 9 provides for another embodiment of the application, such as schemes
Shown in 9.
901st, at least one Physical Resource Block pair for transmitting control channel is determined.
902nd, according to the corresponding eREG of the corresponding candidate eCCE of candidate's aggregation level Lk and the Lk of the control channel, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering is described to be mapped to using first mapping ruler Each Physical Resource Block the first mapping area of centering, and the eREG of each mapping area of Physical Resource Block centering second is mapped to using second mapping ruler, first mapping area is made up of the resource unit of transmission data, and the resource unit that second mapping area is mapped by each the Physical Resource Block centering reference signal and/or other control channels is constituted；Wherein, k is integer, and Lk is any one in k candidate's aggregation level.
903rd, according to the eREG information of the determination, the corresponding eREG of candidate eCCE corresponding to the Lk is detected, when detecting correct, parsing obtains the control information of the control channel carrying from the detection correct eREG, when detecting incorrect, proceed detection to the corresponding eREG of the corresponding candidate eCCE of other candidate's aggregation levels in the k candidate aggregation level in addition to the Lk.
It should be noted that 901 ~ 903 executive agent can be terminal.
Wherein, the control channel is specifically as follows enhanced Physical Downlink Control Channel（Enhanced Physical Downlink Control Channel, ePDCCH ) .
Specifically, in 902, the eREG information of the determination can include eREG numbers and eREG is identified.
Alternatively, in a possible implementation of the present embodiment, first mapping ruler and second mapping ruler can be with identical, or can also differ, and the present embodiment is to this without limiting.
In the present embodiment, pass through at least one Physical Resource Block pair for determining to be used to transmit control channel, and then according to the corresponding eREG of the corresponding candidate eCCE of candidate's aggregation level Lk and the Lk of the control channel, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering is to be mapped to each mapping area of Physical Resource Block centering first using first mapping ruler, and the eREG of each mapping area of Physical Resource Block centering second is mapped to using second mapping ruler, first mapping area is made up of the resource unit of transmission data, second mapping area is made up of the resource unit of each Physical Resource Block centering reference signal and/or other control channels mapping；Wherein, k is integer, Lk is any one in k candidate's aggregation level, make it possible to the eREG information according to the determination, the corresponding eREG of candidate eCCE corresponding to the Lk is detected, when detecting correct, parsing obtains the control information of the control channel carrying from the detection correct eREG, when detecting incorrect, proceed detection to the corresponding eREG of the corresponding candidate eCCE of other candidate's aggregation levels in the k candidate aggregation level in addition to the Lk, controlled it is achieved thereby that receiving some by eREG in Physical Resource Block pair The control information of channel processed such as ePDCCH carryings.
It should be noted that, for foregoing each method embodiment, in order to be briefly described, therefore it is all expressed as to a series of combination of actions, but those skilled in the art should know, the application is not limited by described sequence of movement, because according to the application, some steps can be carried out sequentially or simultaneously using other.Secondly, those skilled in the art should also know, embodiment described in this description belongs to preferred embodiment, necessary to involved action and module not necessarily the application.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not have the part being described in detail in some embodiment, may refer to the associated description of other embodiment.
The structural representation for the base station that Figure 10 provides for another embodiment of the application, as shown in Figure 10, the base station of the present embodiment can include determining that unit 1001, map unit 1002 and transmitting element 1003.Wherein, determining unit 1001 is used at least one Physical Resource Block pair for determining to be used to transmit control channel, and the corresponding eREG of the corresponding each eCCE of aggregation level and the aggregation level according to the control channel, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering numbering, using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, sequentially to the corresponding resource unit cycle arrangement of marginal position；The map unit 1002 is used for the eREG information determined according to the determining unit 1001, and the control channel is mapped on the corresponding eREG of eREG information of the determination；Transmitting element 1003, the position of the eREG for mapping the control channel in the map unit 1002 sends the control information that the control letter i is carried.
Wherein, the control channel is specifically as follows enhanced Physical Downlink Control Channel（Enhanced
Physical Downlink Control Channel, ePDCCH ) 。
Specifically, the eREG information that the determining unit 1001 is determined can include eREG numbers and eREG is identified.
Alternatively, in a possible implementation of the present embodiment, each Physical Resource Block is to alternatively, in a possible implementation of the present embodiment, the center of each Physical Resource Block pair can be the center of other resource units of each Physical Resource Block centering in addition to the resource unit that PDCCH maps.
Alternatively, in a possible implementation of the present embodiment, the eREG of each Physical Resource Block centering can be made up of at least one resource unit of each Physical Resource Block centering. Alternatively, in a possible implementation of the present embodiment, the eREG of each Physical Resource Block centering can by each Physical Resource Block centering except reference signal and/or other control letter wherein, the reference signal can include but is not limited to public reference signal（Common Reference Signal, CRS), DMRS, channel state information reference signals（Channel Status Information Reference Signal, CSI-RS) and location reference signals (Positioning Reference Signal, PRS) at least one.
Alternatively, in a possible implementation of the present embodiment, the eREG of each Physical Resource Block centering numbering, can be using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, in the shape of a spiral sequentially to the corresponding resource unit cycle arrangement of marginal position.
Alternatively, in a possible implementation of the present embodiment, if the eREG of each Physical Resource Block centering numbering, can be using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, in the shape of a spiral sequentially to the corresponding resource unit cycle arrangement of marginal position.Correspondingly, map unit 1002 can also be further according to (x-n)./.N=0, determines the resource unit numbering for the M resource unit that n-th of eREG includes；Wherein, M is the number of the resource unit of each Physical Resource Block centering.Wherein, n numbers for each Physical Resource Block centering eREG eREG, and span is 1 to the integer between N, and N is the eREG of each Physical Resource Block centering number；X numbers for resource unit, and span is 1 to the integer between M；Then, according to 1n T+1 n ^+2n i+2nA left side+3nUnder+3nThe right side+4nUpper+4+...+knx=x-1 or 1nThe right side+1nUnder+2nA left side+2nUpper+3nThe right side+3nUnder+4nA left side+4nUpper++ knx=x-1, determines n-th of eREG position；Wherein, under n, n is right, n is upper is used as original position using the corresponding resource unit in the center with n left representations, in the shape of a spiral sequentially to arrange unit resource unit to the corresponding resource unit of marginal position counterclockwise or clockwise, nx be meet under n determined by the k of above-mentioned equation, n is right, n is upper and n is left one；And by under satisfaction+right side+2nUpper+2nA left side+3nUnder+3nThe right side+4nUpper+4.Left+...+knx=x-1 or 1nThe right side+1nUnder+2nA left side+2nUpper+3nThe right side+3nUnder+4nA left side+4+...+knxThe 1 of=x-1nUnder, 1nThe right side, 2nAbove, 2nA left side, 3nUnder, 3nThe right side, 4nAbove, 4nLeft and knxSum in each direction, determine resource units of n-th of eREG relative to Centre position deviation, to determine n-th of eREG position.
Alternatively, in a possible implementation of the present embodiment, the eREG of each Physical Resource Block centering numbering, can be using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, annularly sequentially to the corresponding resource unit cycle arrangement of marginal position. In the present embodiment, base station determines at least one Physical Resource Block pair for transmitting control channel by determining unit, and then the corresponding eREG of the corresponding each eCCE of aggregation level and the aggregation level according to the control channel, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering numbering, Base Serial Number is used as using the corresponding resource unit in center of each Physical Resource Block pair, sequentially to the corresponding resource unit cycle arrangement of marginal position, and the eREG information determined by map unit according to the determining unit, the control channel is mapped on the corresponding eREG of eREG information of the determination, transmitting element is mapped in the map unit on the eREG of control channel position, send the control information of the control channel carrying, it is achieved thereby that the control information of some control channels such as ePDCCH carryings is sent by eREG in Physical Resource Block pair.
The structural representation for the terminal that Fig. 11 provides for another embodiment of the application, as shown in Fig. 11, the terminal of the present embodiment can include determining that unit 1 101 and detection unit 1 102.Wherein, determining unit 1 101, it is determined that at least one Physical Resource Block pair for transmitting control channel, and according to the corresponding eREG of the corresponding candidate eCCE of candidate's aggregation level Lk and the Lk of the control channel, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering numbering, using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, sequentially to the corresponding resource unit cycle arrangement of marginal position；Wherein, k is integer, and Lk is any one in k candidate's aggregation level；Detection unit 1 102, for the eREG information determined according to the determining unit 1101, the corresponding eREG of candidate eCCE corresponding to the Lk is detected, when detecting correct, parsing obtains the control information of the control channel carrying from the detection correct eREG, when detecting incorrect, proceed detection to the corresponding eREG of the corresponding candidate eCCE of other candidate's aggregation levels in the k candidate aggregation level in addition to the Lk.
Wherein, the control channel is specifically as follows enhanced Physical Downlink Control Channel（Enhanced Physical Downlink Control Channel, ePDCCH ) .
Specifically, the eREG information that the determining unit 1 101 is determined can include eREG numbers and eREG is identified.
Alternatively, in a possible implementation of the present embodiment, each Physical Resource Block is to alternatively, in a possible implementation of the present embodiment, the resource unit that the center of each Physical Resource Block pair can be mapped except PDCCH for each Physical Resource Block centering it The center of other outer resource units.
Alternatively, in a possible implementation of the present embodiment, the eREG of each Physical Resource Block centering can be made up of at least one resource unit of each Physical Resource Block centering.
Alternatively, in a possible implementation of the present embodiment, the eREG of each Physical Resource Block centering can by each Physical Resource Block centering except reference signal and/or other control letter wherein, the reference signal can include but is not limited to public reference signal（Common Reference Signal, CRS), DMRS, channel state information reference signals（Channel Status Information Reference Signal, CSI-RS) and location reference signals (Positioning Reference Signal, PRS) at least one.
Alternatively, in a possible implementation of the present embodiment, the eREG of each Physical Resource Block centering numbering, can be using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, in the shape of a spiral sequentially to the corresponding resource unit cycle arrangement of marginal position.
Alternatively, in a possible implementation of the present embodiment, if the eREG of each Physical Resource Block centering numbering, can be using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, in the shape of a spiral sequentially to the corresponding resource unit cycle arrangement of marginal position.Correspondingly, as shown in Figure 12, the terminal that the present embodiment is provided can further include map unit 1201, for according to (x-n) %N=0, determining the resource unit numbering for the M resource unit that n-th of eREG includes；Wherein, M is the number of the resource unit of each Physical Resource Block centering.Wherein, n is the eREG of each Physical Resource Block centering eREG numberings, and span is 1 to the integer between N, and N is the eREG of each Physical Resource Block centering number；X numbers for resource unit, and span is 1 to the integer between M；Then, according to 1n τ+ 1 n ^+2η ^+2η ^+3 η τ+3η *+4η ^+4ηLeft+...+knx=x-1 or 1n +1n T+2n +2n +3 n +3n T+4n +4n +…… +knxThe fixed the η eREG of=x-1, ^ position；Wherein, under n, n is right, n is upper is used as original position using the corresponding resource unit in the center with n left representations, in the shape of a spiral sequentially to arrange unit resource unit to the corresponding resource unit of marginal position counterclockwise or clockwise, nx be meet under n determined by the k of above-mentioned equation, n is right, n is upper and n is left one；And 1 will be metnUnder+1nThe right side+2nUpper+2nA left side+3nUnder+3nThe right side+4nUpper+4nLeft+...+knx=x-1 or 1nThe right side+1nUnder+2nA left side+2nUpper+3nThe right side+3nUnder+4nA left side+4nUpper+■ ■ ■ ■ ■ ■+knxThe 1 of=x-1nUnder, 1nThe right side, 2nAbove, 2n 、 3 nUnder, 3nThe right side, 4nAbove, 4n iAnd knxSum in each direction, determine resource units of n-th of eREG relative to Centre position deviation, with Determine n-th of eREG position.
Alternatively, in a possible implementation of the present embodiment, the eREG of each Physical Resource Block centering numbering, can be using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, annularly sequentially to the corresponding resource unit cycle arrangement of marginal position.
In the present embodiment, terminal determines at least one Physical Resource Block pair for transmitting control channel by determining unit, and then according to the corresponding eREG of the corresponding candidate eCCE of candidate's aggregation level Lk and the Lk of the control channel, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering numbering, using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, sequentially to the corresponding resource unit cycle arrangement of marginal position；Wherein, k is integer, Lk is any one in k candidate's aggregation level, the eREG information that detection unit is determined according to the determining unit, the corresponding eREG of candidate eCCE corresponding to the Lk is detected, when detecting correct, parsing obtains the control information of the control channel carrying from the detection correct eREG, when detecting incorrect, proceed detection to the corresponding eREG of the corresponding candidate eCCE of other candidate's aggregation levels in the k candidate aggregation level in addition to the Lk, it is achieved thereby that the control information of some control channels such as ePDCCH carryings is received by eREG in Physical Resource Block pair.
The structural representation for the base station that Figure 13 provides for another embodiment of the application, as shown in figure 13, the base station of the present embodiment can include determining that unit 1301, map unit 1302 and transmitting element 1303.Wherein, determining unit 1301 is used at least one Physical Resource Block pair for determining to be used to transmit control channel, and the corresponding eREG of the corresponding each eCCE of aggregation level and the aggregation level according to the control channel, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering is to be mapped to each mapping area of Physical Resource Block centering first using first mapping ruler, and the eREG of each mapping area of Physical Resource Block centering second is mapped to using second mapping ruler, first mapping area is made up of the resource unit of transmission data, second mapping area is made up of the resource unit of each Physical Resource Block centering reference signal and/or other control channels mapping；Map unit 1302, for the eREG information determined according to the determining unit 1301, the control channel is mapped on the corresponding eREG of eREG information of the determination；Transmitting element 1303, the position of the eREG for mapping the control channel in the map unit 1302 sends the control information of the control channel carrying.
Wherein, the control channel is specifically as follows enhanced Physical Downlink Control Channel（Enhanced Physical Downlink Control Channel, ePDCCH ) 。
Specifically, the eREG information that the determining unit 1301 is determined can include eREG numbers and eREG is identified.
In the present embodiment, base station determines at least one Physical Resource Block pair for transmitting control channel by determining unit, and then the corresponding eREG of the corresponding each eCCE of aggregation level and the aggregation level according to the control channel, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering is to be mapped to each mapping area of Physical Resource Block centering first using first mapping ruler, and the eREG of each mapping area of Physical Resource Block centering second is mapped to using second mapping ruler, first mapping area is made up of the resource unit of transmission data, second mapping area is made up of the resource unit of each Physical Resource Block centering reference signal and/or other control channels mapping, and the eREG information determined by map unit according to the determining unit, the control channel is mapped on the corresponding eREG of eREG information of the determination, transmitting element is mapped in the map unit on the eREG of control channel position, send the control information of the control channel carrying, it is achieved thereby that the control information of some control channels such as ePDCCH carryings is sent by eREG in Physical Resource Block pair.
The structural representation for the terminal that Figure 14 provides for another embodiment of the application, as shown in figure 14, the terminal of the present embodiment can include determining that unit 1401 and detection unit 1402.Wherein, determining unit 1401, for at least one Physical Resource Block pair for determining to be used to transmit control channel, and according to the corresponding eREG of the corresponding candidate eCCE of candidate's aggregation level Lk and the Lk of the control channel, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering is to be mapped to each mapping area of Physical Resource Block centering first using first mapping ruler, and the eREG of each mapping area of Physical Resource Block centering second is mapped to using second mapping ruler, first mapping area is made up of the resource unit of transmission data, second mapping area is made up of the resource unit of each Physical Resource Block centering reference signal and/or other control channels mapping；Wherein, k is integer, and Lk is any one in k candidate's aggregation level；Detection unit 1402, for the eREG information determined according to the determining unit 1401, the corresponding eREG of candidate eCCE corresponding to the Lk is detected, when detecting correct, parsing obtains the control information of the control channel carrying from the detection correct eREG, when detecting incorrect, proceed detection to the corresponding eREG of the corresponding candidate eCCE of other candidate's aggregation levels in the k candidate aggregation level in addition to the Lk. Specifically, the eREG information that the determining unit 1401 is determined can include eREG numbers and eREG is identified.
In the present embodiment, terminal determines at least one Physical Resource Block pair for transmitting control channel by determining unit, and then according to the corresponding eREG of the corresponding candidate eCCE of candidate's aggregation level Lk and the Lk of the control channel, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering is to be mapped to each mapping area of Physical Resource Block centering first using first mapping ruler, and the eREG of each mapping area of Physical Resource Block centering second is mapped to using second mapping ruler, first mapping area is made up of the resource unit of transmission data, second mapping area is made up of the resource unit of each Physical Resource Block centering reference signal and/or other control channels mapping；Wherein, k is integer, Lk is any one in k candidate's aggregation level, the eREG information that detection unit is determined according to the determining unit, the corresponding eREG of candidate eCCE corresponding to the Lk is detected, when detecting correct, parsing obtains the control information of the control channel carrying from the detection correct eREG, when detecting incorrect, proceed detection to the corresponding eREG of the corresponding candidate eCCE of other candidate's aggregation levels in the k candidate aggregation level in addition to the Lk, it is achieved thereby that the control information of some control channels such as ePDCCH carryings is received by eREG in Physical Resource Block pair.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the specific work process of the system, apparatus, and unit of foregoing description may be referred to the corresponding process in preceding method embodiment, will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be realized by another way.For example, device embodiment described above is only schematical, for example, the division of the unit, it is only a kind of division of logic function, there can be other dividing mode when actually realizing, such as multiple units or component can combine or be desirably integrated into another system, or some features can be ignored, or do not perform.Another, it, by some interfaces, the INDIRECT COUPLING or communication connection of device or unit, can be electrical, machinery or other forms that shown or discussed coupling or direct-coupling or communication connection each other, which can be,.
The unit illustrated as separating component can be or may not be physically separate, and the part shown as unit can be or may not be physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs. In addition, each functional unit in the application each embodiment can be integrated in a processing unit or unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated unit can both be realized in the form of hardware, it would however also be possible to employ hardware adds the form of SFU software functional unit to realize.
The above-mentioned integrated unit realized in the form of SFU software functional unit, can be stored in a computer read/write memory medium.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are to cause a computer equipment（Can be personal computer, server, or network equipment etc.）Or processor（Processor the part steps of each embodiment methods described of the application) are performed.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage（Read-Only Memory, abbreviation ROM), random access memory（Random Access Memory, abbreviation RAM), magnetic disc or CD etc. are various can be with the medium of store program codes.
Finally it should be noted that：Above example is only to the technical scheme for illustrating the application, rather than its limitations；Although the application is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It can still modify to the technical scheme described in foregoing embodiments, or carry out equivalent substitution to which part technical characteristic；And these modifications or replacement, the essence of appropriate technical solution is departed from the spirit and scope of each embodiment technical scheme of the application.

Claims (23)

  1. Claims
    1st, a kind of control channel transmission method, it is characterised in that including：
    It is determined that at least one Physical Resource Block pair for transmitting control channel；
    According to the corresponding eREG of the corresponding each eCCE of the aggregation level of the control channel and the aggregation level, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering numbering, using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, sequentially to the corresponding resource unit cycle arrangement of marginal position；According to the eREG information of the determination, the control channel is mapped on the corresponding eREG of eREG information of the determination；
    On the eREG position for mapping the control channel, the control information that the control channel ^ is carried is sent.
    2nd, according to the method described in claim 1, it is characterized in that, the eREG of each Physical Resource Block centering numbering, Base Serial Number is used as using the corresponding resource unit in center of each Physical Resource Block pair, sequentially to the corresponding resource unit cycle arrangement of marginal position, including：
    The eREG of each Physical Resource Block centering numbering, using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, in the shape of a spiral sequentially to the corresponding resource unit cycle arrangement of marginal position；Or
    The eREG of each Physical Resource Block centering numbering, using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, annularly sequentially to the corresponding resource unit cycle arrangement of marginal position.
    3rd, method according to claim 1 or 2, it is characterised in that the center of each Physical Resource Block pair, including：
    The center of the resource unit of each Physical Resource Block centering；Or
    The center of other resource units of each Physical Resource Block centering in addition to the resource unit that PDCCH maps.
    4th, the method according to claim 1 ~ 3 any claim, it is characterised in that the eREG of each Physical Resource Block centering is made up of at least one resource unit of each Physical Resource Block centering；Or
    The eREG of each Physical Resource Block centering is by least one in other resource units in addition to the resource unit that reference signal and/or other control channels map of each Physical Resource Block centering Resource unit is constituted.
    5th, the method according to claim 1 ~ 4 any claim, it is characterized in that, if the eREG of each Physical Resource Block centering numbering, using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, in the shape of a spiral sequentially to the corresponding resource unit cycle arrangement of marginal position；The eREG information according to the determination, before the control channel is mapped on the corresponding eREG of eREG information of the determination, in addition to：
    According to (x-n) %N=0, the resource unit numbering in the M resource unit that n-th of eREG includes is determined；Wherein, M is the number of the resource unit of each Physical Resource Block centering.Wherein, n is the eREG of each Physical Resource Block centering eREG numberings, and span is 1 to the integer between N, and N is the eREG of each Physical Resource Block centering number；X numbers for resource unit, and span is 1 to the integer between M；
    According to 1nUnder+1nThe right side+2nUpper+2nA left side+3nUnder+3nThe right side+4nUpper+4.Left+...+knx=x-1 or 1nThe right side+1nUnder+2n i+2n i+3 n *+3n T+4n i+4n i+ ...... +knx=x-1, determines the η eREG position；Wherein, under n, n is right, n is upper is used as original position using the corresponding resource unit in the center with n left representations, in the shape of a spiral sequentially to arrange unit resource unit to the corresponding resource unit of marginal position counterclockwise or clockwise, nx be meet under n determined by the k of above-mentioned equation, n is right, n is upper and n is left one；
    1 will be metn T+1n *+2n i+2n i+3 n T+3n *+4n i+4n i+…… +knx=x-1 or 1nThe right side+1nUnder+2nA left side+2nUpper+3n +3nUnder+4nA left side+4.Upper+...+knxUnder=x-1 1 n, 1 n it is right, 2nAbove, 2nLeft, 3 nτ、 3ηThe right side, 4ηAbove, 4nAnd knxSum in each direction, determine resource units of n-th of eREG relative to Centre position deviation, to determine n-th of eREG position.
    6th, a kind of control channel transmission method, it is characterised in that including：
    It is determined that at least one Physical Resource Block pair for transmitting control channel；
    According to the corresponding eREG of the corresponding candidate eCCE of candidate's aggregation level Lk and the Lk of the control channel, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering numbering, it is sequentially bad to the corresponding resource unit circulation row of marginal position using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number | J;Wherein, k is integer, and Lk is any one in k candidate's aggregation level；
    According to the eREG information of the determination, the corresponding eREG of candidate eCCE corresponding to the Lk is detected, when detecting correct, and parsing obtains the control letter from the detection correct eREG The control information of road carrying, when detecting incorrect, proceeds detection to the corresponding eREG of the corresponding candidate eCCE of other candidate's aggregation levels in the k candidate aggregation level in addition to the Lk.
    7th, method according to claim 6, it is characterized in that, the eREG of each Physical Resource Block centering numbering, Base Serial Number is used as using the corresponding resource unit in center of each Physical Resource Block pair, sequentially to the corresponding resource unit cycle arrangement of marginal position, including：
    The eREG of each Physical Resource Block centering numbering, using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, in the shape of a spiral sequentially to the corresponding resource unit cycle arrangement of marginal position；Or
    The eREG of each Physical Resource Block centering numbering, using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, annularly sequentially to the corresponding resource unit cycle arrangement of marginal position.
    8th, the method according to claim 6 or 7, it is characterised in that the center of each Physical Resource Block pair, including：
    The center of the resource unit of each Physical Resource Block centering；Or
    The center of other resource units of each Physical Resource Block centering in addition to the resource unit that PDCCH maps.
    9th, the method according to claim 6 ~ 8 any claim, it is characterised in that the eREG of each Physical Resource Block centering is made up of at least one resource unit of each Physical Resource Block centering；Or
    The eREG of each Physical Resource Block centering is made up of at least one resource unit in other resource units in addition to the resource unit that reference signal and/or other control channels map of each Physical Resource Block centering.
    10th, the method according to claim 6 ~ 9 any claim, it is characterized in that, if the eREG of each Physical Resource Block centering numbering, using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, in the shape of a spiral sequentially to the corresponding resource unit cycle arrangement of marginal position；The eREG information according to the determination, before the control channel is mapped on the corresponding eREG of eREG information of the determination, in addition to：
    According to (x-n) %N=0, the resource unit numbering for the M resource unit that n-th of eREG includes is determined；Wherein, M is the number of the resource unit of each Physical Resource Block centering.Wherein, n is the eREG of each Physical Resource Block centering eREG numberings, and span is 1 to the integer between N, and N is The eREG of each Physical Resource Block centering number；X numbers for resource unit, and span is 1 to the integer between M；
    According to 1n τ+1 n ^+2n i+2n ^+3 n r+3n *+4n ^+4n i+…… +knx=x-1 or 1nThe right side+1nUnder+2n i+2n i+3 n *+3n T+4n i+4n i+ ...... +knx=x-1, determines the π eREG position；Wherein, under n, n is right, n is upper is used as original position using the corresponding resource unit in the center with n left representations, in the shape of a spiral sequentially to arrange unit resource unit to the corresponding resource unit of marginal position counterclockwise or clockwise, nx be meet under n determined by the k of above-mentioned equation, n is right, n is upper and n is left one；
    1 n T will be met+ 1 n *+2n i+2n i+3 η τ+3ηThe right side+4nLeft+...+knx=x-1 or 1nThe right side+1nUnder+2nA left side+2nUpper+3nThe right side+3nUnder+4nA left side+4.Upper+...+knxThe 1 of=x-1nUnder, 1nThe right side, 2nAbove, 2nA left side, 3nUnder, 3nThe right side, 4nAbove, 4nAnd knxSum in each direction, determine resource units of n-th of eREG relative to Centre position deviation, to determine n-th of eREG position.
    11st, a kind of control channel transmission method, it is characterised in that including：
    It is determined that at least one Physical Resource Block pair for transmitting control channel；
    According to the corresponding eREG of the corresponding each eCCE of the aggregation level of the control channel and the aggregation level, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering is to be mapped to each mapping area of Physical Resource Block centering first using first mapping ruler, and the eREG of each mapping area of Physical Resource Block centering second is mapped to using second mapping ruler, first mapping area is made up of the resource unit of transmission data, second mapping area is made up of the resource unit of each Physical Resource Block centering reference signal and/or other control channels mapping；
    According to the eREG information of the determination, the control channel is mapped on the corresponding eREG of eREG information of the determination；
    On the eREG position for mapping the control channel, the control information that the control channel ^ is carried is sent.
    12nd, a kind of control channel transmission method, it is characterised in that including：
    It is determined that at least one Physical Resource Block pair for transmitting control channel；
    According to the corresponding eREG of the corresponding candidate eCCE of candidate's aggregation level Lk and the Lk of the control channel, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering is described each to be mapped to using first mapping ruler The mapping area of Physical Resource Block centering first, and the eREG of each mapping area of Physical Resource Block centering second is mapped to using second mapping ruler, first mapping area is made up of the resource unit of transmission data, and the resource unit that second mapping area is mapped by each the Physical Resource Block centering reference signal and/or other control channels is constituted；Wherein, k is integer, and Lk is any one in k candidate's aggregation level；
    According to the eREG information of the determination, the corresponding eREG of candidate eCCE corresponding to the Lk is detected, when detecting correct, parsing obtains the control information of the control channel carrying from the detection correct eREG, when detecting incorrect, proceed detection to the corresponding eREG of the corresponding candidate eCCE of other candidate's aggregation levels in the k candidate aggregation level in addition to the Lk.
    13rd, a kind of base station, it is characterised in that including：
    Determining unit, for at least one Physical Resource Block pair for determining to be used to transmit control channel, and the corresponding eREG of the corresponding each eCCE of aggregation level and the aggregation level according to the control channel, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering numbering, using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, sequentially to the corresponding resource unit cycle arrangement of marginal position；Map unit, for the eREG information determined according to the determining unit, the control channel is mapped on the corresponding eREG of eREG information of the determination；
    Transmitting element, the position of the eREG for mapping the control channel in the map unit sends the control information of the control channel carrying.
    14th, the base station according to claim 13, it is characterized in that, the eREG of each Physical Resource Block centering numbering, Base Serial Number is used as using the corresponding resource unit in center of each Physical Resource Block pair, sequentially to the corresponding resource unit cycle arrangement of marginal position, including：
    The eREG of each Physical Resource Block centering numbering, using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, in the shape of a spiral sequentially to the corresponding resource unit cycle arrangement of marginal position；Or
    The eREG of each Physical Resource Block centering numbering, using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, annularly sequentially to the corresponding resource unit cycle arrangement of marginal position.
    15th, the base station according to claim 13 or 14, it is characterised in that the center of each Physical Resource Block pair, including： The center of the resource unit of each Physical Resource Block centering；Or
    The center of other resource units of each Physical Resource Block centering in addition to the resource unit that PDCCH maps.
    16th, the base station according to claim 13 ~ 15 any claim, it is characterised in that the eREG of each Physical Resource Block centering is made up of at least one resource unit of each Physical Resource Block centering；Or
    The eREG of each Physical Resource Block centering is made up of at least one resource unit in other resource units in addition to the resource unit that reference signal and/or other control channels map of each Physical Resource Block centering.
    17th, the base station according to claim 13 ~ 16 any claim, it is characterized in that, if the eREG of each Physical Resource Block centering numbering, using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, in the shape of a spiral sequentially to the corresponding resource unit cycle arrangement of marginal position；The map unit is additionally operable to
    According to (x-n) %N=0, the resource unit numbering for the M resource unit that n-th of eREG includes is determined；Wherein, M is the number of the resource unit of each Physical Resource Block centering.Wherein, n is the eREG of each Physical Resource Block centering eREG numberings, and span is 1 to the integer between N, and N is the eREG of each Physical Resource Block centering number；X numbers for resource unit, and span is 1 to the integer between M；
    According to 1nUnder+1nThe right side+2nUpper+2nA left side+3nUnder+3nThe right side+4nUpper+4.Left+...+knx=x-1 or 1nThe right side+1nUnder+2.A left side+2.Upper+3n *+3n T+4n i+4n i+ ...... +knx=x-1, determines the η eREG position；Wherein, under n, n is right, n is upper is used as original position using the corresponding resource unit in the center with n left representations, in the shape of a spiral sequentially to arrange unit resource unit to the corresponding resource unit of marginal position counterclockwise or clockwise, nx be meet under n determined by the k of above-mentioned equation, n is right, n is upper and n is left one；
    ^, which takes by force, meets I n T+ l n+Zn+Zn+Sn τ+3ηRight+upper+left+...+knx=X-1 or 1nThe right side+1nUnder+2nA left side+2nUpper+3n +3nUnder+4nA left side+4.Upper+...+knxUnder=x-1 1 n, 1 n it is right, 2nAbove, 2nUnder left, 3 n, 3n ;fr、 4nAbove, 4nAnd knxSum in each direction, determine resource units of n-th of eREG relative to Centre position deviation, to determine n-th of eREG position.
    18th, a kind of terminal, it is characterised in that including：
    Determining unit, it is determined that at least one Physical Resource Block pair for transmitting control channel, and according to The corresponding eREG of the corresponding candidate eCCE of candidate's aggregation level Lk and the Lk of the control channel, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering numbering, using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, sequentially to the corresponding resource unit cycle arrangement of marginal position；Wherein, k is integer, and Lk is any one in k candidate's aggregation level；
    Detection unit, for the eREG information determined according to the determining unit, the corresponding eREG of candidate eCCE corresponding to the Lk is detected, when detecting correct, parsing obtains the control information of the control channel carrying from the detection correct eREG, when detecting incorrect, proceed detection to the corresponding e REG of the corresponding candidate eCCE of other candidate's aggregation levels in the k candidate aggregation level in addition to the Lk.
    19th, the terminal according to claim 18, it is characterized in that, the eREG of each Physical Resource Block centering numbering, Base Serial Number is used as using the corresponding resource unit in center of each Physical Resource Block pair, sequentially to the corresponding resource unit cycle arrangement of marginal position, including：
    The eREG of each Physical Resource Block centering numbering, using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, in the shape of a spiral sequentially to the corresponding resource unit cycle arrangement of marginal position；Or
    The eREG of each Physical Resource Block centering numbering, using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, annularly sequentially to the corresponding resource unit cycle arrangement of marginal position.
    20th, the terminal according to claim 18 or 19, it is characterised in that the center of each Physical Resource Block pair, including：
    The center of the resource unit of each Physical Resource Block centering；Or
    The center of other resource units of each Physical Resource Block centering in addition to the resource unit that PDCCH maps.
    21st, the terminal according to claim 18 ~ 20 any claim, it is characterised in that the eREG of each Physical Resource Block centering is made up of at least one resource unit of each Physical Resource Block centering；Or
    The eREG of each Physical Resource Block centering is made up of at least one resource unit in other resource units in addition to the resource unit that reference signal and/or other control channels map of each Physical Resource Block centering. 22nd, the terminal according to claim 18 ~ 21 any claim, it is characterized in that, if the eREG of each Physical Resource Block centering numbering, using the corresponding resource unit in center of each Physical Resource Block pair as Base Serial Number, in the shape of a spiral sequentially to the corresponding resource unit cycle arrangement of marginal position；The base station also includes map unit, is used for
    According to (x-n) %N=0, the resource unit numbering for the M resource unit that n-th of eREG includes is determined；Wherein, M is the number of the resource unit of each Physical Resource Block centering.Wherein, n is the eREG of each Physical Resource Block centering eREG numberings, and span is 1 to the integer between N, and N is the eREG of each Physical Resource Block centering number；X numbers for resource unit, and span is 1 to the integer between M；
    According to 1n τ+1 n *+2n +2n ^+3 n r+3n *+4n i+4n i+…… +knx=x-1 or 1nThe right side+1nUnder
    +2n i+2n i+3 n *+3n T+4n i+4n i+ ...... +knx=x-1, determines the π eREG position；Wherein, under n, n is right, n is upper is used as original position using the corresponding resource unit in the center with n left representations, in the shape of a spiral sequentially to arrange unit resource unit to the corresponding resource unit of marginal position counterclockwise or clockwise, nx be meet under n determined by the k of above-mentioned equation, n is right, n is upper and n is left one；
    1n T+1n +2n +2n +3 n T+3n +4n +4n +…… +knx=x-1 ^ 1nThe right side+1nUnder+2n +2n +3 nThe right side+3nUnder+4n +4n +■■■■■■ +knxThe 1 of=x-1nUnder, 1nThe right side, 2nAbove, 2nA left side, 3nUnder, 3nThe right side, 4nAbove, 4nAnd knxSum in each direction, determine resource units of n-th of eREG relative to Centre position deviation, to determine n-th of eREG position.
    23rd, a kind of base station, it is characterised in that including：
    Determining unit, for at least one Physical Resource Block pair for determining to be used to transmit control channel, and the corresponding eREG of the corresponding each eCCE of aggregation level and the aggregation level according to the control channel, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering is to be mapped to each mapping area of Physical Resource Block centering first using first mapping ruler, and the eREG of each mapping area of Physical Resource Block centering second is mapped to using second mapping ruler, first mapping area is made up of the resource unit of transmission data, second mapping area is made up of the resource unit of each Physical Resource Block centering reference signal and/or other control channels mapping；
    Map unit, for the eREG information determined according to the determining unit, the control channel is mapped on the corresponding eREG of eREG information of the determination； Transmitting element, the position of the eREG for mapping the control channel in the map unit sends the control information of the control channel carrying.
    24th, a kind of terminal, it is characterised in that including：
    Determining unit, for at least one Physical Resource Block pair for determining to be used to transmit control channel, and according to the corresponding eREG of the corresponding candidate eCCE of candidate's aggregation level Lk and the Lk of the control channel, it is determined that each Physical Resource Block centering is used for the eREG information for mapping the control channel, the eREG of each Physical Resource Block centering is to be mapped to each mapping area of Physical Resource Block centering first using first mapping ruler, and the eREG of each mapping area of Physical Resource Block centering second is mapped to using second mapping ruler, first mapping area is made up of the resource unit of transmission data, second mapping area is made up of the resource unit of each Physical Resource Block centering reference signal and/or other control channels mapping；Wherein, k is integer, and Lk is any one in k candidate's aggregation level；
    Detection unit, for the eREG information determined according to the determining unit, the corresponding eREG of candidate eCCE corresponding to the Lk is detected, when detecting correct, parsing obtains the control information of the control channel carrying from the detection correct eREG, when detecting incorrect, proceed detection to the corresponding eREG of the corresponding candidate eCCE of other candidate's aggregation levels in the k candidate aggregation level in addition to the Lk.
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