CN103891343A - Method for sending enhanced physical downlink control channel (ePDCCH), base station, and terminal - Google Patents

Method for sending enhanced physical downlink control channel (ePDCCH), base station, and terminal Download PDF

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CN103891343A
CN103891343A CN201280007796.2A CN201280007796A CN103891343A CN 103891343 A CN103891343 A CN 103891343A CN 201280007796 A CN201280007796 A CN 201280007796A CN 103891343 A CN103891343 A CN 103891343A
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time
control channel
frequency
region
resource block
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CN103891343B (en
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吴强
高驰
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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • 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
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space

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

Abstract

Embodiments of the present invention relate to a method for sending an enhanced physical downlink control channel (ePDCCH), a base station, and a terminal. Physical resources one ePDCCH is mapped to comprise at least one control channel component member; one physical resource block pair can be used for sending at least two control channel component members, and can be divided into at least two areas, and comprised REs are respectively corresponding to at least two control channel component members; the at least two control channel component members respectively have different numbers of control channel component members; and the number of a control channel component member corresponding to at least one RE in one area of the at least two areas has a one-to-one mapping relationship with the number of a control channel component member corresponding to an RE in at least another area of the at least two areas; a base station determines an RE corresponding to a control channel component member in the physical resource block; and the base station sends control information borne by the control channel component member through the RE corresponding to the control channel component member in the physical resource block.

Description

Method for sending enhanced physical downlink control channel (ePDCCH), base station, and terminal
Enhanced Physical Downlink Control Channel ePDCCH sending method, base station and terminal
The present embodiments relate to communication technical field, more particularly to a kind of enhanced Physical Downlink Control Channel ePDCCH sending method, base station and terminal for technical field.Background technology in the prior art, a Physical Resource Block (Physical Resource Block, PRB) internally, various patterns（Pattern enhancing control channel unit)（Enhanced Control Channel Element, eCCE) or enhancing resource unit group (Enhanced Resource Group, eREG), the sequentially cyclic mapping in the way of first frequency domain again time domain.
However, due to each OFDM in PRB pair（Orthogonal Frequency Division Multiplexing, OFDM) symbol expense, for example：Public reference signal（Common Reference Signal, CRS), channel state information reference signals（Channel-State Information Reference Signal,) or demodulated reference signal (Demodulation Reference Signal CSI-RS, DMRS) equal distribution is uneven, therefore, cause to remove after expense, the resource shared by the eCCE or eREG of various patterns（Resource Element, RE) size it is unbalanced, so as to cause eCCE the or eREG transmission performances of various patterns unbalanced.The content of the invention embodiment of the present invention provides a kind of enhanced Physical Downlink Control Channel ePDCCH sending method, base station and terminal, the RE shared by the control channel composition member of various patterns in balanced PRB pair is realized, the control channel of balanced various patterns constitutes the transmission performance of member.
On the one hand, the embodiments of the invention provide a kind of enhanced Physical Downlink Control Channel ePDCCH sending method, one ePDCCH includes at least one control channel and constitutes member, one Physical Resource Block is to can be used in sending at least two control channels composition member, the Physical Resource Block is to being divided at least two regions, the Physical Resource Block corresponds respectively at least two control channels composition member to included resource unit RE, the at least two control channels composition member has different control channel composition member's numberings respectively, the corresponding controls of at least one RE in a region at least two region Exist between channel forming member numbering processed, control channel composition member's numbering corresponding with the RE in other at least one regions at least two region --- corresponding relation；
Methods described includes：
Base station determines control channel composition member corresponding RE in the Physical Resource Block to be sent;The base station constitutes member corresponding RE in the Physical Resource Block by the control channel to be sent and sends the control channel composition member.
The embodiment of the present invention additionally provides a kind of enhanced Physical Downlink Control Channel ePDCCH sending method, one ePDCCH includes at least one control channel and constitutes member, one Physical Resource Block is to can be used in sending at least two control channels composition member, the Physical Resource Block is to being divided at least two regions, the Physical Resource Block corresponds respectively at least two control channels composition member to included resource unit RE, the at least two control channels composition member has different control channel composition member's numberings respectively, the corresponding control channel composition member's numberings of at least one RE in a region at least two region, there is one-to-one relationship between control channel composition member's numbering corresponding with the RE in other at least one regions at least two region；
Methods described includes：
Terminal constitutes member corresponding RE in the Physical Resource Block by control channel and receives the control channel composition member that base station is sent, and control channel composition member corresponding RE in the Physical Resource Block is determined by the base station；
The data that control channel composition member described in the terminal-pair includes are decoded.
On the other hand, the embodiment of the present invention also provides a kind of base station, one ePDCCH includes at least one control channel and constitutes member, one Physical Resource Block is to can be used in sending at least two control channels composition member, the Physical Resource Block is to being divided at least two regions, the Physical Resource Block corresponds respectively at least two control channels composition member to included resource unit RE, the at least two control channels composition member has different control channel composition member's numberings respectively, the corresponding control channel composition member's numberings of at least one RE in a region at least two region, exist between control channel composition member's numbering corresponding with the RE in other at least one regions at least two region --- corresponding relation；
The base station includes：
Processor, for determining control channel composition member corresponding RE in the Physical Resource Block to be sent; Transmitter, the control channel to be sent determined by the processor constitutes member corresponding RE in the Physical Resource Block and sends the control channel composition member.
The embodiment of the present invention also provides a kind of terminal, one ePDCCH includes at least one control channel and constitutes member, one Physical Resource Block is to can be used in sending at least two control channels composition member, the Physical Resource Block is to being divided at least two regions, the Physical Resource Block corresponds respectively at least two control channels composition member to included resource unit RE, the at least two control channels composition member has different control channel composition member's numberings respectively, the corresponding control channel composition member's numberings of at least one RE in a region at least two region, exist between control channel composition member's numbering corresponding with the RE in other at least one regions at least two region --- corresponding relation；The terminal includes：
Receiver, receives the control channel composition member that base station is sent, control channel composition member corresponding RE in the Physical Resource Block is determined by the base station for constituting member corresponding RE in the Physical Resource Block by control channel；
Processor, the data included for constituting member to the control channel are decoded.
Enhanced Physical Downlink Control Channel ePDCCH provided in an embodiment of the present invention sending method, base station and terminal.PRB pair can be divided at least two regions, the RE that PRB pair includes, which corresponds respectively at least two, has the control channel composition member of different numberings, the corresponding control channel composition member's numberings of any RE at least two regions in a region, there is one-to-one relationship between control channel composition member's numbering corresponding with the RE in other at least one regions, so that can hook the control channel composition member including various numberings on the corresponding RE of control channel composition member that base station is determined, realize that the control channel composition member for removing pilot-frequency expense numbers included RE numbers and tried one's best equilibrium, the control channel of balanced various patterns constitutes the transmission performance of member.Brief description of the drawings is in order to illustrate more clearly about the embodiment of the present invention 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 only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
The flow chart of the sending method one embodiment for the enhanced Physical Downlink Control Channel ePDCCH that Fig. 1 provides for the present invention； Fig. 2 is the pilot-frequency expense schematic diagram of normal cyclic prefix subframe；
PRB pair is divided into the schematic diagram of two time-frequency regions of size identical for the base station that the present invention is provided by Fig. 3 according to frequency domain；
Fig. 4 is for the base station of the invention provided by PRB pair according to the schematic diagram that temporal partitioning is two time-frequency regions of size identical；
Fig. 5 is for the base station of the invention provided by PRB pair according to the schematic diagram that time domain and temporal partitioning are four time-frequency regions of size identical；
The flow chart for enhanced Physical Downlink Control Channel ePDCCH sending method another embodiment that Fig. 6 provides for the present invention；
Fig. 7 distributes to all RE included in PRB pair for the base station that the present invention is provided in the eCCE of 4 kinds of numberings schematic diagram；
Fig. 8 is the pilot-frequency expense schematic diagram shared by the eCCE of the various numberings under the method for salary distribution shown in Fig. 7；
Fig. 9 distributes to all RE included in PRB pair for the base station that the present invention is provided in the eREG of 8 kinds of numberings schematic diagram；
Figure 10 is the pilot-frequency expense schematic diagram shared by the eREG of the various numberings under the method for salary distribution shown in Fig. 9；
The structural representation of base station one embodiment that Figure 11 provides for the present invention；
The structural representation of terminal one embodiment that Figure 12 provides for the present invention.Embodiment is below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, 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 protection of the invention.
The techniques described herein may be used in various communication systems, such as current 2G, 3G communication systems and next generation communication system, such as global system for mobile communications（GSM, Global System for Mobile communications), CDMA (CDMA, Code Division Multiple Access) system, time division multiple acess（TDMA, Time Division Multiple Access) system, WCDMA (WCDMA, Wideband Code Division Multiple Access Wireless), frequency Location（FDMA, Frequency Division Multiple Addressing) system, OFDM (OFDMA, Orthogonal Frequency-Division Multiple Access) system, Single Carrier Frequency Division Multiple Access (SC-FDMA) system, GPRS（GPRS, General Packet Radio Service) system, Long Term Evolution（LTE, Long Term Evolution) system, and other such communication systems.
The base station being related in the application（For example, access point）It can refer in access network on interface in the air by one or more sectors and the equipment of wireless terminal communications.Base station can be used for IP packets mutually being changed the air frame received, and as the router between wireless terminal and the remainder of access network, the remainder of wherein access network may include Internet protocol（IP) network.Attribute management of the base station also tunable to air interface.For example, base station can be the base station in GSM or CDMA（BTS, Base Transceiver Station), can also be the base station in WCDMA（), NodeB it can also be the evolved base station in LTE（NodeB or eNB or e-NodeB, evolutional Node B), the application is not limited.
The terminal being related in the application, that is user equipment, can be that wireless terminal can also be catv terminal, wireless terminal can refer to the equipment for providing a user voice and/or data connectivity, portable equipment with wireless connecting function or other processing equipments for being connected to radio modem.Wireless terminal can be through wireless access network（For example, RAN, Radio Access Network) communicated with one or more core nets, wireless terminal can be mobile terminal, such as mobile phone（Or be " honeycomb " phone）With the computer with mobile terminal, for example, it may be portable, pocket, hand-held, built-in computer or vehicle-mounted mobile device, they exchange language and/or data with wireless access network.For example, PCS (PCS, Personal Communication Service) phone, wireless phone, Session initiation Protocol (SIP) phone, WLL (WLL, Wireless Local Loop) stand, personal digital assistant（PDA, Personal Digital Assistant) etc. equipment.Wireless terminal is referred to as system, subscri er unit（Subscriber Unit), subscriber station（Subscriber Station), movement station（Mobile Station), mobile station (Mobile), distant station（Remote Station), access point (Access Point), remote terminal (Remote Terminal), access terminal (Access Terminal), user terminal（User Terminal), user agent（User Agent), user equipment (User Device) or subscriber's installation (User Equipment).
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, These three situations of individualism B.In addition, character herein " ,-as represent forward-backward correlation object be it is a kind of " or " relation.
The flow chart of the sending method one embodiment for the enhanced Physical Downlink Control Channel ePDCCH that Fig. 1 provides for the present invention, as shown in Figure 1, the physical resource that one ePDCCH is mapped to includes at least one control channel and constitutes member, one Physical Resource Block is to can be used in sending at least two control channels composition member, Physical Resource Block is to being divided at least two regions, Physical Resource Block corresponds respectively at least two control channels composition member to included resource unit RE, at least two control channels composition member has different control channel composition member's numberings respectively, the corresponding control channel composition member's numberings of at least one RE in a region at least two regions, exist between control channel composition member's numbering corresponding with the RE in other at least one regions at least two regions --- corresponding relation.
This method includes：
5101st, base station determines control channel composition member corresponding RE in the Physical Resource Block.
5102nd, base station constitutes member corresponding RE in the Physical Resource Block by the control channel and sends the control information that the control channel constitutes member's carrying.
Optionally, control channel composition member can include the corresponding sets of resource units of eCCE or eREG.
Base station sends control channel composition member, can be using centralized ePDCCH or distributed ePDCCH.For centralized ePDCCH, base station can send eCCE at least one PRB pair on RE, and the eCCE of transmission is concentrated in one or 2 PRB pairs；For distributed ePDCCH, base station can send eREG at least one PRB pair on RE, and the eREG of transmission is dispersed in multiple PRB pairs.
In Fig. 2, normal CP (a Cyclic Prefix, cyclic prefix are given）One resource block pair of descending sub frame（Resource Block, RB) structure.One RB pairs, two time slots are included in time domain（Slot), each time slot has 7 OFDM symbols, and normal CP subframe has 14 OFDM symbols.As shown in Fig. 2 wherein the 0-6 OFDM symbol belongs to first time slot；The 7-13 OFDM symbol belongs to second time slot.On frequency domain, a RB pair includes 12 subcarriers on frequency domain, as shown in Figure 2.Can be 0-11 to 12 interior subcarrier numbers by a RB, its rule numbered can be according to the order of frequency from low to high, can also be according to the order of frequency from high to low.Some subcarrier in some OFDM symbol is referred to as resource element（Resource Element, RE), if the 0th subcarrier of the 0th OFDM symbol in Fig. 2 is exactly a RE. In actually sending, the RB that resource physically is used is to being called Physical Resource Block pair（ PRB pair ).In order to represent convenient, in the embodiment of the present invention, i-th of subcarrier is represented with the i-th row（I=0 to 11), jth row represent j-th of OFDM symbol（j=0-13 ).J-th of RE of the i-th row in PRB pair is the corresponding RE of j-th of OFDM symbol on i-th of subcarrier in PRB pair.
Fig. 2 is the pilot-frequency expense schematic diagram of normal cyclic prefix subframe simultaneously, as shown in Fig. 2 often row includes
14 OFDM symbols, each column includes 12 subcarriers.A grid in Fig. 2 represents a RE.From figure 2 it can be seen that for CRS, if PRB pair is divided into the equal two parts up and down of line number, on be partly mapped to a certain RE CRS numbering it is identical with the RE of the correspondence position in the lower part CRS mapped numbering.For example：The CRS numberings that the RE of the upper row the 0th of part the 2nd row is mapped are 0, and the CRS numberings that the RE that lower part correspondence position eighth row the 0th is arranged is mapped also are 0, i.e. identical with the CRS numberings of i-th of subcarrier of a line and the i-th+6 subcarriers.
Similar, for CSI-RS, in the row without DMRS, for example：0-4 is arranged and 7-11 is bad | J, if it is identical with the pattern in the RE of the lower part correspondence position CSI-RS mapped that according to frequency domain PRB is divided into the CSI-RS that RE is mapped in two time-frequency regions of size identical, the time-frequency region of upper part.That is, for the RE of same row, if the RE of the i-th row is mapped as the RE of the i-th+6 row in a CSI-RS pattern, the time-frequency region of same column lower middle portion and is equally mapped as the CSI-RS patterns in the time-frequency region of upper part.For example：The RE of 0th row the 9th row is mapped as the port of CSI-RS pattern two, then the RE that the row the 9th of 0+6=6 is arranged equally is mapped as the port of CSI-RS pattern two.
In the row with DMRS, for example：5-6 is arranged and 12-13 row, mirror symmetry above and below CSI-RS patterns satisfaction.I.e., for the RE of same row, if the RE of the i-th row (i is since 0) is mapped as the RE of 11-i rows in a CSI-RS pattern, the time-frequency region of same column lower middle portion and is equally mapped as the CSI-RS patterns in the time-frequency region of upper part.For example：The RE of the upper row the 5th of part the 2nd row is mapped as the port of CSI-RS patterns 1, and the RE of the lower row the 5th of part the 9th row is equally mapped as the port of CSI-RS patterns 1.
Due to needing to be configured to some RE to cannot be used for ePDCCH transmission on DMRS, DMAS in each PRB pair.In addition, during actual transmissions, in addition it is also necessary to some RE are mapped as into the pilot tones such as CRS or CSI-RS, and ePDCCH transmission can not be used in these pilot tones.
Accordingly, in the embodiment of the present invention, PRB pair can be divided at least two regions, optionally, and each PRB pair at least one PRB pair is divided at least two regions.
Specifically, as shown in figure 3, PRB pair can be divided into two time-frequency regions of size identical according to frequency domain；Or, as shown in figure 4, PRB pair can be two time-frequency regions of size identical according to temporal partitioning； Or, as shown in figure 5, PRB pair can also be divided into four time-frequency regions of size identical according to time domain and frequency domain.It is understood that PRB pair can also be divided into the time-frequency region of other quantity, it is numerous to list herein.
It should be noted that Fig. 3-Fig. 5 is only several feasible implement scenes, PRB pair can symmetrically be divided at least two regions, can also asymmetrically be divided at least two regions.For example, PRB
The serial number even number of OFDM symbol can be divided into a time-frequency region；Or, the serial number even number of the subcarrier that can be divided into a time-frequency region, PRB pair of the serial number odd number of the subcarrier in PRB pair can be divided into a time-frequency region.
The CRS mapped by the RE in different zones, there is the control channel composition member that certain channel forming member numbers between the pilot-frequency expenses such as CSI-RS, exist between the corresponding control channel composition member's numberings of at least one RE in a region at least two regions, control channel composition member's numbering corresponding with the RE in other at least one regions --- corresponding relation.So that same CRS ports, or the RE shared by same CSI-RS patterns, on the control channel composition member that various control channel composition member's numberings can be uniformly mapped to, it can realize that RE numbers that the control channel composition member of the various numberings after removal CRS, CSI-RS etc. pilot-frequency expense is mapped are tried one's best equilibrium.
It is used as a kind of feasible embodiment, if two time-frequency regions of the size identical divided according to frequency domain are divided into four time-frequency regions of size identical according to time domain and frequency domain, the corresponding control channel composition member's numberings of at least one RE in one time-frequency region, can have the first corresponding relation between control channel composition member's numbering corresponding with the RE in other at least one time-frequency regions.
Optionally, under the implement scene, if two time-frequency regions of the size identical divided according to frequency domain are being divided into four time-frequency regions of size identical according to time domain and frequency domain, the first corresponding relation can be set up between the corresponding control channel composition member's numberings of any RE in one time-frequency region, control channel composition member's numbering corresponding with the RE in another time-frequency region according to the first rule.
Under a kind of implement scene, Physical Resource Block is to including f subcarrier, f is even number, if two time-frequency regions of size identical divided according to frequency domain, the first rule can include：Control channel composition member's numbering corresponding to the corresponding RE of j-th of OFDM symbol in two time-frequency regions in a time-frequency region and on i-th of subcarrier in Physical Resource Block pair, it is in another time-frequency region and corresponding positioned at j-th of OFDM symbol in Physical Resource Block on the i-th+f/2 subcarriers with two time-frequency regions RE corresponding to control channel composition member numbering between exist the first corresponding relation；Under another implement scene, Physical Resource Block is to including f subcarrier, f is the integer more than or equal to 2, if two time-frequency regions of size identical divided according to frequency domain, the first rule can also include：Control channel composition member's numbering corresponding to the corresponding RE of j-th of OFDM symbol in two time-frequency regions in a time-frequency region and in the Physical Resource Block pair on i-th of subcarrier, with two time-frequency regions in another time-frequency region and between control channel composition member's numbering corresponding to the corresponding RE of j-th of OFDM symbol on the f-i subcarrier in Physical Resource Block in the presence of the first corresponding relation.
Optionally, the corresponding control channel composition member's numberings of any RE in a time-frequency region in two time-frequency regions are k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are n, and the first corresponding relation can include：K+n=N-1, N are the number that Physical Resource Block constitutes member to the control channel that can be sent, and k value is the integer more than or equal to 0 and less than or equal to N-1, and n value is the integer more than or equal to 0 and less than or equal to N-1；Or,
The corresponding control channel composition member's numberings of any RE in a time-frequency region in two time-frequency regions are k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are n, and the first corresponding relation can include：N=M0D (k+q, N), N is the number that Physical Resource Block constitutes member to the control channel that can be sent, MOD is modulo operation, k value is the integer more than or equal to 0 and less than or equal to N-1, n value is the integer more than or equal to 0 and less than or equal to N-1, and q is the integer more than or equal to 0 and less than or equal to N-1；Or,
The corresponding control channel composition member's numberings of any RE in a time-frequency region in two time-frequency regions are k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are n, and the first corresponding relation can be able to be：If k is more than P-1, n=T-1-k;If k is less than or equal to P-1, then n=P-1-k, T is the subcarrier number that Physical Resource Block is internally included, P=N/2, k value is the integer more than or equal to 0 and less than or equal to N-1, n value is the integer more than or equal to 0 and less than or equal to N-1, and N is the number that Physical Resource Block constitutes member to the control channel that can be sent, and N is even number.It is used as another feasible embodiment, if two time-frequency regions of the size identical divided according to frequency domain are divided into four time-frequency regions of size identical according to time domain and frequency domain, there may be the second corresponding relation between the corresponding control channel composition member's numberings of at least one RE in one time-frequency region, control channel composition member's numbering corresponding with the RE in other at least one time-frequency regions. Optionally, if according to temporal partitioning two time-frequency regions of size identical or be divided into four time-frequency regions of size identical according to time domain and frequency domain, between the corresponding control channel composition member's numberings of any RE in one time-frequency region, control channel composition member's numbering corresponding with the RE in another time-frequency region the second corresponding relation is set up according to Second Rule.
Under a kind of implement scene, Physical Resource Block to there is g OFDM symbol on one sub-carrier, and g is even number, if according in two time-frequency regions of size identical of temporal partitioning, Second Rule can include：There is the second corresponding relation between control channel composition member's numbering corresponding to the corresponding RE of j-th of OFDM symbol in two time-frequency regions in a time-frequency region and on i-th subcarrier in Physical Resource Block pair, control channel composition member's numbering corresponding to RE corresponding with+g/2 OFDM symbols of jth in two time-frequency regions in another time-frequency region and on i-th subcarrier in Physical Resource Block；
Under another implement scene, Physical Resource Block to there is g OFDM symbol on one sub-carrier, and g is even number, if according in two time-frequency regions of size identical of temporal partitioning, Second Rule can include：There is the second corresponding relation between control channel composition member's numbering corresponding to the corresponding RE of j-th of OFDM symbol in two time-frequency regions in a time-frequency region and on i-th of subcarrier in Physical Resource Block pair, control channel composition member's numbering corresponding to RE corresponding with the g-j OFDM symbol in two time-frequency regions in another time-frequency region and on i-th of subcarrier in Physical Resource Block.
Optionally, the corresponding control channel composition member's numberings of any RE in a time-frequency region in two time-frequency regions are k, the corresponding control channel composition member's numbering n of in another time-frequency region a RE, and the second corresponding relation can be：K+n=N-1, N are the number that Physical Resource Block constitutes member to the control channel that can be sent, and k value is the integer more than or equal to 0 and less than or equal to N-1, and n value is the integer more than or equal to 0 and less than or equal to N-1；Or,
The corresponding control channel composition member's numberings of any RE in a time-frequency region in two time-frequency regions are k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are n, and the second corresponding relation can be：N=M0D (k+q, N), N is the number that the control channel that Physical Resource Block is internally included constitutes member, MOD is modulo operation, k value is the integer more than or equal to 0 and less than or equal to N-1, n value is the integer more than or equal to 0 and less than or equal to N-1, and q is the integer more than or equal to 0 and less than or equal to N-1；Or,
The corresponding control channels of any RE in a time-frequency region in two time-frequency regions are constituted into Member's numbering is k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are n, and the second corresponding relation is：If k is more than or equal to P-1, n=T-1-k;If k is less than P-1, n=P-1-k,
T is the subcarrier number that Physical Resource Block is internally included, and P=N/2, N is the number that Physical Resource Block constitutes member to the control channel that can be sent, and N is even number.Optionally, exist --- two control channels of corresponding relation composition member's numbering can be differed so that further such that RE in each region can uniform mapping constitute member's numbering to different control channels control channel composition member on.
Optionally, at least one numbered in the presence of the control channel composition member of --- corresponding relation in corresponding two RE can be the RE for not carrying demodulated reference signal DMRS, so that CRS and CSI-RS pilot-frequency expenses are removed, and removal DMRS expenses RE can be uniformly mapped on the control channel of various numberings composition member.
Optionally, the RE at least one subcarrier that any one region at least two regions is included can correspond at least two control channels composition member.Wherein, the RE on each subcarrier that any one region at least two regions is included can correspond at least two control channels composition member.
Or, the RE at least one orthogonal frequency division multiplex OFDM symbol that any one region at least two regions is included can correspond at least two control channels composition member.Wherein, the RE on each orthogonal frequency division multiplex OFDM symbol that any one region at least two regions is included can correspond at least two control channels composition member.
The sending method for the enhanced Physical Downlink Control Channel ePDCCH that the present embodiment is provided, PRB pair can be divided at least two regions, P RB to including RE correspond respectively at least two have different numberings control channels constitute members, the corresponding control channel composition member's numberings of any RE at least two regions in a region, exist between control channel composition member's numbering corresponding with the RE in other at least one regions --- corresponding relation, so that on the corresponding RE of control channel composition member that base station is determined uniformly the control channel including various numberings member can be constituted, realize that the control channel composition member for removing pilot-frequency expense numbers included RE numbers and tried one's best equilibrium, the control channel of balanced various patterns constitutes the transmission performance of member.The flow chart for enhanced Physical Downlink Control Channel ePDCCH sending method another embodiment that Fig. 6 provides for the present invention, as shown in fig. 6, the physical resource that an ePDCCH is mapped to is included extremely Few control channel composition member, one Physical Resource Block is to can be used in sending at least two control channels composition member, Physical Resource Block is to being divided at least two regions, Physical Resource Block corresponds respectively at least two control channels composition member to included resource unit RE, at least two control channels composition member has different control channel composition member's numberings respectively, the corresponding control channel composition member's numberings of at least one RE in a region at least two regions, exist between control channel composition member's numbering corresponding with the RE in other at least one regions at least two regions --- corresponding relation；Method includes：
5601st, terminal constitutes member corresponding RE in Physical Resource Block by control channel and receives the control channel composition member that base station is sent, and control channel composition member corresponding RE in Physical Resource Block is determined by base station.
5602nd, the control information that control channel composition member is carried is parsed.
Wherein, region division mode in PRB pair, and the corresponding control channel composition member's numberings of at least one RE at least two regions in region, existing between control channel composition member's numbering corresponding with the RE in other at least one regions at least two regions --- corresponding relation for details, reference can be made to the associated description in embodiment illustrated in fig. 1, will not be repeated here.The RE that candidate collection maps is detected one by one, and then the control information that can be carried to control channel composition member is parsed.Wherein, terminal is according to aggregation level and the number of the corresponding ePDCCH candidate collections of aggregation level, the RE that candidate collection maps is detected one by one, the process to obtain the control information that the control channel composition member of base station transmission is carried will not be repeated here as prior art.
The sending method for the enhanced Physical Downlink Control Channel ePDCCH that the present embodiment is provided, PRB pair can be divided at least two regions, P RB to including RE correspond respectively at least two have different numberings control channels constitute members, the corresponding control channel composition member's numberings of any RE at least two regions in a region, exist between control channel composition member's numbering corresponding with the RE in other at least one regions --- corresponding relation, so that can hook the control channel composition member including various numberings on the corresponding RE of control channel composition member that terminal is received, realize that the control channel composition member for removing pilot-frequency expense numbers included RE numbers and tried one's best equilibrium, the control channel of balanced various patterns constitutes the transmission performance of member. Control channel composition member presented below is the corresponding sets of resource units of eCCE, RE included by PRB pair is corresponded respectively to exemplified by four corresponding sets of resource units of eCCE with different numberings, and the ePDCCH provided the present invention sending method is illustrated.
In the present embodiment, as shown in fig. 7, all RE included in PRB pair are distributed to 4 kinds of numberings by base station（Numbering 0- numberings 3) the corresponding sets of resource units of eCCE, eCCE is in whole PRB to being mapped on interior all RE.It should be noted that the corresponding sets of resource units numberings of the eCCE included in PRB pair can also be other numbers, such as：2.
Referring also to Fig. 3, PRB pair according to frequency domain can be divided into two time-frequency regions of size identical by base station, referred to here as first area and second area, there is the first corresponding relation in the corresponding sets of resource units numberings of the corresponding sets of resource units numberings of the corresponding eCCE of RE eCCE corresponding with the RE of same column in second area that first area and second area are included in the RE of same sub-carrier and identical OFDM symbol, first area.
PRB pair includes f subcarrier, f is even number, in the present embodiment, f can be equal to 12, if in two time-frequency regions of size identical divided according to frequency domain, control channel composition member's numbering corresponding to the corresponding RE of j-th of OFDM symbol in a time-frequency region and on i-th of subcarrier in PRB pairs, with in another time-frequency region and in the PRB i-th+6 (i.e., i-th+f/2) there is the first corresponding relation between control channel composition member's numbering corresponding to the corresponding RE of j-th of OFDM symbol on individual subcarrier.
I.e., there is the first corresponding relation between the corresponding sets of resource units numberings of the eCCE corresponding to the corresponding RE of j-th of OFDM symbol in first area and on i-th of subcarrier in PRB pair, the corresponding sets of resource units numberings of eCCE corresponding to RE corresponding with j-th of OFDM symbol in second area and on the i-th+6 subcarriers in PRB.It is appreciated that, there is the first corresponding relation between the corresponding sets of resource units numberings of the eCCE corresponding to the corresponding RE of j-th of OFDM symbol in second area and on i-th of subcarrier in PRB pair, the corresponding sets of resource units numberings of eCCE corresponding to the RE corresponding with j-th of OFDM symbol in PRB in first area on the i-th -6 subcarriers.
In the present embodiment, the corresponding sets of resource units numberings of the corresponding eCCE of any RE in first area are the corresponding sets of resource units numbering n of the corresponding eCCE of a RE in k, second area, and the first corresponding relation can be：K+n=N-1, N are the number for the corresponding sets of resource units of eCCE that PRB pair can be sent, and k value is the integer more than or equal to 0 and less than or equal to N-1, n Value for more than or equal to 0 and less than or equal to N-1 integer.
Under the implement scene, the corresponding sets of resource units numberings of all RE distribution eCCE that base station first can include for first area, for example：Can be in the way of time domain after frequency domain after first time domain or first frequency domain after the corresponding sets of resource units numberings of RE distribution eCCE, base station can be the corresponding sets of resource units numberings of RE distribution eCCE in second area according to k+n=N-1 corresponding relation.It is appreciated that, base station can also be first the corresponding sets of resource units of eCCE that the corresponding sets of resource units distribution numberings of all RE distribution eCCE that second area includes are 0-3, after the corresponding sets of resource units numberings of RE distribution eCCE in second area, base station can be the corresponding sets of resource units numberings of RE distribution eCCE in first area according to k+n=N-1 corresponding relation.
Similar, it is used as another feasible embodiment, referring also to Fig. 4, base station can be by PRB to being two time-frequency regions of size identical according to temporal partitioning, referred to here as first area and second area, there is the second corresponding relation in the corresponding sets of resource units numberings of the corresponding sets of resource units numberings of the corresponding eCCE of RE eCCE corresponding with the RE gone together in second area that first area and second area are included in the RE of same sub-carrier and identical OFDM symbol, first area.
PRB blocks to that can have g OFDM symbol on one sub-carrier, g is even number, in the present embodiment, g can be equal to 14, if according in two time-frequency regions of size identical of temporal partitioning, the corresponding sets of resource units numberings of the eCCE corresponding to the corresponding RE of j-th of OFDM symbol in a time-frequency region and on i-th of subcarrier in PRB pair, there is the second corresponding relation between the corresponding sets of resource units numberings of eCCE corresponding to RE corresponding with jth+7 (i.e. jth+g/2) individual OFDM symbol in another time-frequency region and on i-th of subcarrier in PRB.
I.e., there is the second corresponding relation between the corresponding sets of resource units numberings of the eCCE corresponding to the corresponding RE of j-th of OFDM symbol in first area and on i-th of subcarrier in PRB pair, the corresponding sets of resource units numberings of eCCE corresponding to RE corresponding with+7 OFDM symbols of jth in PRB in second area on i-th of subcarrier.It is appreciated that, there is the second corresponding relation between the corresponding sets of resource units numberings of the eCCE corresponding to the corresponding RE of j-th of OFDM symbol in second area and on i-th of subcarrier of PRB centerings, the corresponding sets of resource units numberings of eCCE corresponding to RE corresponding with -7 OFDM symbols of jth in first area and on i-th of subcarrier in PRB. In the present embodiment, the corresponding sets of resource units numbering n of eCCE that RE eCCE corresponding sets of resource units numbering is the RE in k, second area in first area, the second corresponding relation can be：K+n=N-1, wherein, N is the number for the corresponding sets of resource units of eCCE that PRB pair can be sent, and k value is the integer more than or equal to 0 and less than or equal to N-1, and n value is the integer more than or equal to 0 and less than or equal to N-1.
Wherein, the position of the expense such as DMRS, CRS and CSI-RS in the PRB pair shown in Fig. 7 can be found in Fig. 2.Fig. 8 is given under the PRB pair RE methods of salary distribution shown in Fig. 7, different pilot frequency ports, the number of the RE shared by a PRB pair.As can be seen that to different CRS, different configurations, the number of the CRS in the corresponding sets of resource units of eCCE of every kind of numbering is that in a balanced way, the number of the CSI-RS in the corresponding sets of resource units of eCCE of every kind of numbering is in a balanced way.
As another feasible embodiment, PRB pair according to time domain and frequency domain can also be divided into four time-frequency regions of size identical by referring also to Fig. 5, base station.Wherein, according to frequency domain be divided into size identical Liang Ge time-frequencies area i or in, there is the first corresponding relation between the one time-frequency area i or interior corresponding eCCE of at least one RE corresponding sets of resource units numbering, the corresponding sets of resource units numbering of eCCE corresponding with the RE in another time-frequency region；According to temporal partitioning in two time-frequency regions of size identical, there is the second corresponding relation between the corresponding sets of resource units numbering of corresponding eCCE of at least one RE in one time-frequency region, the corresponding sets of resource units numbering of eCCE corresponding with the RE in another time-frequency region.Wherein, the associated description of the first corresponding relation and the second corresponding relation can be found in the associated description in Fig. 1 and embodiment illustrated in fig. 7, will not be repeated here.Control channel composition member presented below is eREG, and the RE included by PRB pair is corresponded respectively to exemplified by eight eREG with different numberings, and the ePDCCH provided the present invention sending method is illustrated.
In the present embodiment, as shown in figure 9, all RE included in PRB pair are distributed to 8 kinds of numberings by base station（Numbering 0- numberings 7) eREG, eREG is in whole PRB to being mapped on interior all RE.It should be noted that the eREG numberings included in PRB pair can also be other numbers, such as：16.
Referring also to Fig. 3, each PRB pair according to frequency domain can be divided into two time-frequency regions of size identical by base station, referred to here as the 3rd region and the 4th region, 3rd region and the 4th region include the corresponding eREG numberings of a RE in the RE of same sub-carrier and identical OFDM symbol, the 3rd region There is the first corresponding relation in eREG numberings corresponding with the RE of same column in the 4th region.
Under a kind of implement scene, Physical Resource Block is to including f subcarrier, f is even number, if in two time-frequency regions of size identical divided according to frequency domain, there is the first corresponding relation between control channel composition member's numbering corresponding to the corresponding RE of j-th of OFDM symbol in one time-frequency region and on i-th of subcarrier in PRB pair, control channel composition member's numbering corresponding to RE corresponding with j-th of OFDM symbol in another time-frequency region and on i-th+6 (i.e. the i-th+f/2) individual subcarrier in PRB.
I.e., there is the first corresponding relation between eREG numberings corresponding to the corresponding RE of j-th of OFDM symbol in 3rd region and on i-th of subcarrier in PRB pair, the eREG numberings corresponding to RE corresponding with j-th of OFDM symbol in the 4th region and on the i-th+6 subcarriers in PRB.It is appreciated that, there is the first corresponding relation between eREG numberings corresponding to the corresponding RE of jth OFDM symbol in 4th region and on i-th of subcarrier in PRB pair, the eREG numberings corresponding to RE corresponding with j-th of OFDM symbol in the 3rd region and on the i-th -6 subcarriers in PRB.
In the present embodiment, the eREG numbering n that the corresponding eREG numberings of any RE in the 3rd region are RE in k (row where the RE do not include demodulated reference signal DMRS), the 4th region, the first corresponding relation can be：N=MOD (k+q, N), wherein, N is the eREG included in PRB pair number（8) N takes in the present embodiment, MOD is modulo operation, k value is the integer more than or equal to 0 and less than or equal to N-1, and n value is the integer more than or equal to 0 and less than or equal to N-1, and q is the integer more than or equal to 0 and less than or equal to N-1（For example, 4) q can take.
Being arranged for 0-4 for DMRS, and 7-11 row are not included in PRB pair.Assuming that in same row, the eREG of the RE in the 3rd region numbering is k, the eREG of the RE in the 4th region numbering is n, shellfish ' J n=MOD (k+q, N).MOD represents ear not computing, and MOD (a, b) represents the computing to a^M not b.Assuming that making i represent capable, j represents row, if the i-th row j dependents of dead military hero then in PRB pair are in some RE in the 3rd region, and this RE eREG numberings k, then belong in PRB pair the i-th+6 row jth dependent of dead military hero in the RE of four-range eREG numbering n=MOD (k+q, N).When q takes 4, it can be deduced that, the i-th row j dependents of dead military hero can be in the RE in the 3rd region corresponding relation between four-range RE eREG numberings n of eREG numberings k and the i-th+6 row jth dependent of dead military hero：
0 < >4, 1 < >5, 2 < >6, 3 < >7。
Optionally, under another implement scene, PRB pair includes f subcarrier, f for more than or equal to 2 integer, f can be equal to 11, in two time-frequency regions of size identical divided according to frequency domain, in the presence of the first corresponding relation between control channel composition member's numbering corresponding to the corresponding RE of j-th of OFDM symbol in a time-frequency region and in the PRB pair on i-th of subcarrier, control channel composition member's numbering corresponding to RE corresponding with j-th of OFDM symbol in PRB in another time-frequency region on 11-i (i.e. f-i) individual subcarrier.
I.e., 3rd region and the eREG numberings corresponding to the corresponding RE of j-th of OFDM symbol in the PRB pair on i-th of subcarrier, in the presence of the first corresponding relation between being numbered the eREG corresponding to the corresponding RE of j-th of OFDM symbols in the 4th region and on the 11-i subcarrier in PRB.
The eREG numbering n that the corresponding eREG numberings of any RE in 3rd region are RE in k (row where the RE include demodulated reference signal DMRS), the 4th region, the first corresponding relation can be：N=MOD (k+q, N), wherein, N is the eREG included in PRB pair number（8) N takes in the present embodiment, MOD is that ear ^ is not operated, k value is the integer more than or equal to 0 and less than or equal to N-1, and n value is the integer more than or equal to 0 and less than or equal to N-1, and q is the integer more than or equal to 0 and less than or equal to N-1（For example, 4) q can take.
PRB pair includes DMRS and is classified as in 5-6 row, and 12-13 row, the RE in same row in the 3rd region and the 4th region, and the 4th row and the 7th row meet n=MOD (k+q, N);2nd row and eighth row meet n=MOD (k+q, N);3rd row and the 9th row meet n=MOD (k+q, N).
It is used as another feasible embodiment, referring also to Fig. 4, base station can also be by each PRB pair to being two time-frequency regions of size identical according to temporal partitioning, referred to here as the 3rd region and the 4th region, the corresponding eREG of a RE that 3rd region and the 4th region are included in the RE of same sub-carrier and identical OFDM symbol, the 3rd region number the second corresponding relation that eREG numberings corresponding with the RE gone together in the 4th region have setting.
In the present embodiment, the corresponding eREG numberings of any RE in the 3rd region are k, eREG numbering n corresponding with a RE in the 4th region, and the second corresponding relation is：If k is more than P-1, n=T-1-k;If k is less than or equal to P-1, n=P-1-k, T is the subcarrier number included in PRB pair, and P=N/2, N is the number for the eREG that PRB pair can be sent, and N is even number.
For example, in the 3rd region any RE of any row eREG numbering k, with another RE gone together in the 4th region eREG numbering n, the second corresponding relation can be：If k is more than 3, n=11-x;If k is less than 3, n=3-k.In this example, T=12, Ν=8, Ρ=Ν/2=4. As another feasible embodiment, PRB pair according to time domain and frequency domain can also be divided into four time-frequency regions of size identical by referring also to Fig. 5, base station.Wherein, it is divided into according to frequency domain in two time-frequency regions of size identical, the corresponding eREG numberings of at least one RE in a time-frequency region, there is the first corresponding relation between eREG numberings corresponding with the RE in another time-frequency region；According to when i or be divided into size identical Liang Ge time-frequencies area i or in, there is the second corresponding relation between eREG numberings corresponding with the RE in another time-frequency region in a time-frequency area i or at least one interior RE corresponding eREG numberings.Wherein, the associated description of the first corresponding relation and the second corresponding relation can be found in the associated description in Fig. 1 and Fig. 9 illustrated embodiments, will not be repeated here.Based on above-mentioned first corresponding relation and the second corresponding relation, when the RE in for PRB pair distributes eREG numberings, as long as knowing the eREG numberings of the RE in any time-frequency region, it can obtain eREG numberings of the RE in other 3 time-frequency regions.For example：In any one time-frequency region, it is only necessary to meet and take certain reference signal（Reference Signal, RS), for example：CRS, CSI RS etc. each RE eREG numberings are belonging respectively to the eREG of both above numbering, and the number of every kind of numbering is essentially identical.
Assuming that the corresponding relation of RE eREG numberings is k=MOD (n+q, N), the then following corresponding relation that can be numbered in above-mentioned two time-frequency regions divided according to frequency domain：
0 < >4, 3 < >7, 1 < >5, 2 < >6
Assuming that being z=IF (x according to the corresponding relation of RE eREG numberings in two time-frequency regions of temporal partitioning>3,11-x, 3-x), then the following corresponding relation that can be numbered：
0 < >3, 1 < >2, 4 < >7, 5< >6
From the second corresponding relation, suite number, such as 0 are arbitrarily selected<>3, the first group # is classified as, according to first group of corresponding relation 0<>4, 3 <>7, it is 4,7 to obtain two other numbering corresponding with 0,3, then 4 numberings 0 will be singled out, 3,4,7 points be the first group #；Remaining 4 numbering 1,2,5,6 points be the second group #.By first, second and third and four region by whole PRB to being divided into 4 regions, referring to Fig. 5.
Numbering on all RE of PRB pair belongs to above-mentioned two group #, and the RE numbers with the first group # are identical with the RE numbers with the second group #.
For example：PRB pair is divided into according to time domain and frequency domain under the implement scene of equal-sized four time-frequency regions in base station, as shown in figure 9, in the time-frequency region of upper left, columns is 0 to 4 RE, According to the order of Column Row, each RE eREG numberings are followed successively by 1,2,4 and 7;Columns is 5 to 6 RE, according to the order of Row Column, and each RE eREG numberings are followed successively by 1,2,4 and 7.It is then corresponding, it can be deduced that：
In the time-frequency region of lower-left, columns is 0 to 4 RE, according to the order of Column Row, and each RE eREG numberings are followed successively by 5,6,0 and 3;Columns is 5 to 6 RE, according to the order of Row Column, and each RE eREG numberings are followed successively by 5,6,0 and 3;
In upper right time-frequency region, columns is 7 to 11 RE, according to the order of Column Row, and each RE eREG numberings are followed successively by 2,1,7 and 4;Columns is 12 to 13 RE, according to the order of Row Column, and each RE eREG numberings are followed successively by 2,1,7 and 4;
In the time-frequency region of bottom right, columns is 7 to 11 RE, according to the order of Column Row, and each RE eREG numberings are followed successively by 6,5,3 and 0;Columns is 12 to 13 RE, according to the order of Row Column, and each RE eREG numberings are followed successively by 6,5,3 and 0.
The position of the expenses such as DMRS, CRS and CSI-RS in PRB pair shown in Fig. 9 can be found in Fig. 2.Figure 10 gives CRS different in Fig. 9, under CSI-RS configurations, the number of pilots shared by the eREG of difference numbering.As can be seen that different pilot frequency configurations, the number of pilots shared by the eREG of every kind of numbering is identical.
It should be noted that in all embodiments more than, the corresponding relation of the numbering of the control channel composition member of the RE between two regions can include：
The corresponding control channel composition member's numberings of any RE in one time-frequency region are k, the corresponding control channel composition member's numbering n of in another time-frequency region a RE, and the first corresponding relation can be：K+n=N-1, N are the number that Physical Resource Block constitutes member to the control channel that can be sent, and k value is the integer more than or equal to 0 and less than or equal to N-1, and n value is the integer more than or equal to 0 and less than or equal to N-1；Or,
The corresponding control channel composition member's numberings of any RE in one time-frequency region are k, and control channel corresponding with a RE in another time-frequency region constitutes member's numbering n, and the first corresponding relation can be：N=MOD (k+q, N), N is the number that Physical Resource Block constitutes member to the control channel that can be sent, MOD is modulo operation, k value is the integer more than or equal to 0 and less than or equal to N-1, n value is the integer more than or equal to 0 and less than or equal to N-1, and q is the integer more than or equal to 0 and less than or equal to N-1；Or,
The corresponding control channel composition member's numbering of any RE in one time-frequency region is k, with it is another when The corresponding control channels of a RE in frequency domain constitute member's numbering n, and the first corresponding relation can be：If k is more than P-1, n=T-1-k;If k is less than or equal to P-1, then n=P-1-k, T is the subcarrier number that Physical Resource Block is internally included, P=N/2, k value is the integer more than or equal to 0 and less than or equal to N-1, n value is the integer more than or equal to 0 and less than or equal to N-1, and N is the number that Physical Resource Block constitutes member to the control channel that can be sent, and N is even number.
Above-mentioned corresponding relation is applied to equal-sized two time-frequency regions according to temporal partitioning, is also applied for equal-sized two time-frequency regions divided according to frequency domain.In the embodiment of region division more than, two regions can be divided into above and below two or the region of left and right two.Two regions belong to the zoning on frequency domain up and down, and the region of left and right two belongs to the zoning in time domain.Further, zoning can account for 6 subcarriers according to each region on frequency domain, but be not the subcarrier that numbering is 0-5（0-5 rows in Fig. 3）For a region, the subcarrier that numbering is 6-11（6-11 rows in Fig. 3）For another region.The such as symbol without DMRS（0-4 row in Fig. 5；7-11 is arranged）.In same row, or i-th of row（I=0 to 5) and the RE eCCE or eREG numbering of the i-th+6 row have corresponding relation.But a region is the 0,2,4,7,9,11st row；Another region is the 1st, 3,5,6,8,10 row.I.e. i-th row（I=0 to 5) and the i-th+6 row be belonging respectively to different regions.
Similarly, when being divided according to frequency domain, jth=0 to 6 of same subcarrier) RE of individual+7 OFDM symbols of OFDM symbol and jth has corresponding relation.Can also 0,2,4,6,8,10,12 OFDM symbol be used as first area；1,2,5,7,9,11,13 OFDM symbol is used as second area.As long as meeting same --- jth G=0 to 6 of subcarrier) individual+7 OFDM symbols of OFDM symbol and jth are in different regions.Moreover, the corresponding relation in region can continue to use the corresponding relation of above example, repeat no more.On the basis of above-mentioned implementation, optionally, base station determines an eCCE to be sent corresponding RE in PRB couples ,-individual eCCE correspondence any twos eREG;Or, base station can determine an eCCE to be sent corresponding RE in Physical Resource Block pair ,-individual eCCE correspondence any fours eREG.For example：Numbering is that the RE shared by 1 and 6 eREG constitutes an eCCE;Numbering is that the RE shared by 2 and 5 eREG constitutes the corresponding sets of resource units of an eCCE；The RE shared by eREG that mark numbering is 4 and 4 constitutes the corresponding sets of resource units of an eCCE；Numbering is that the RE shared by 7 and 0 eREG constitutes the corresponding sets of resource units of an eCCE.It so equally ensure that the RE numbers shared by the corresponding sets of resource units of different eCCE are identical. The structural representation of base station one embodiment that Figure 11 provides for the present invention, as shown in figure 11, the physical resource that one ePDCCH is mapped to includes at least one control channel and constitutes member, one Physical Resource Block is to can be used in sending at least two control channels composition member, Physical Resource Block is to being divided at least two regions, Physical Resource Block corresponds respectively at least two control channels composition member to included resource unit RE, at least two control channels composition member has different control channel composition member's numberings respectively, the corresponding control channel composition member's numberings of at least one RE in a region at least two regions, exist between control channel composition member's numbering corresponding with the RE in other at least one regions at least two regions --- corresponding relation；
The base station includes：Processor 11 and transmitter 12;
Processor 11, for determining control channel composition member corresponding RE in the Physical Resource Block;Transmitter 12, the control information that the control channel constitutes member's carrying is sent for constituting member corresponding RE in the Physical Resource Block by the control channel.
Optionally, Physical Resource Block is to being divided at least two regions, including：Each Physical Resource Block of at least one Physical Resource Block centering is to being divided at least two regions.
Optionally, existing --- two control channels composition member's numbering of corresponding relation is differed.
Optionally, the RE at least one subcarrier that any one region at least two regions is included corresponds at least two control channels and constitutes member；Or, at least two region at least one orthogonal frequency division multiplex OFDM symbol for being included of any one region on RE correspond at least two control channels and constitute member.
Optionally, the RE at least one subcarrier that any one region at least two regions is included corresponds at least two control channels and constitutes member, including：The RE on each subcarrier that any one region at least two regions is included corresponds at least two control channels and constitutes member；Or,
The RE at least one orthogonal frequency division multiplex OFDM symbol that any one region at least two regions is included corresponds at least two control channels and constitutes member, including：
The RE on each orthogonal frequency division multiplex OFDM symbol that any one region at least two regions is included corresponds at least two control channels and constitutes member.
Optionally, existing --- at least one RE that the control channel composition member of corresponding relation is numbered in corresponding two RE is the RE for not carrying demodulated reference signal DMRS.
Optionally, Physical Resource Block is to being divided at least two regions, including：Physical Resource Block to according to Temporal partitioning is two time-frequency regions of size identical；Or, Physical Resource Block according to frequency domain to being divided into two time-frequency regions of size identical；Or, Physical Resource Block according to time domain and frequency domain to being divided into four time-frequency regions of size identical.
Optionally, the corresponding control channel composition member's numberings of at least one RE in a region at least two regions, exist between control channel composition member's numbering corresponding with the RE in other at least one regions at least two regions --- corresponding relation, including：
If two time-frequency regions of the size identical divided according to frequency domain are divided into four time-frequency regions of size identical according to time domain and frequency domain, there is the first corresponding relation between the corresponding control channel composition member's numberings of at least one RE in one time-frequency region, control channel composition member's numbering corresponding with the RE in other at least one time-frequency regions；
If according to temporal partitioning two time-frequency regions of size identical or be divided into four time-frequency regions of size identical according to time domain and frequency domain, there is the second corresponding relation between the corresponding control channel composition member's numberings of at least one RE in one time-frequency region, control channel composition member's numbering corresponding with the RE in other at least one time-frequency regions.
Optionally, if two time-frequency regions of the size identical divided according to frequency domain are divided into four time-frequency regions of size identical according to time domain and frequency domain, the corresponding control channel composition member's numberings of at least one RE in one time-frequency region, there is the first corresponding relation between control channel composition member's numbering corresponding with the RE in other at least one time-frequency regions, including：
If two time-frequency regions of the size identical divided according to frequency domain are being divided into four time-frequency regions of size identical according to time domain and frequency domain, between the corresponding control channel composition member's numberings of any RE in one time-frequency region, control channel composition member's numbering corresponding with the RE in another time-frequency region the first corresponding relation is set up according to the first rule.
Optionally, Physical Resource Block is to including f subcarrier, f is even number, if two time-frequency regions of size identical divided according to frequency domain, the first rule includes：There is the first corresponding relation between control channel composition member's numbering corresponding to the corresponding RE of j-th of OFDM symbol in two time-frequency regions in a time-frequency region and on i-th of subcarrier in Physical Resource Block pair, control channel composition member's numbering corresponding to RE corresponding with j-th of OFDM symbol in two time-frequency regions in another time-frequency region and on the individual subcarriers of the i-th+f/2 in Physical Resource Block；Or, Physical Resource Block is to including f subcarrier, f is the integer more than or equal to 2, if two time-frequency regions of size identical divided according to frequency domain, the first rule includes：In a time-frequency region and positioned at physical resource in two time-frequency regions There is the first corresponding relation between control channel composition member's numbering corresponding to the corresponding RE of j-th of OFDM symbol on i-th of subcarrier of block centering, control channel composition member's numbering corresponding to RE corresponding with j-th of OFDM symbol in two time-frequency regions in another time-frequency region and on the f-i subcarrier in Physical Resource Block.
Optionally, the corresponding control channel composition member's numberings of any RE in a time-frequency region in two time-frequency regions are k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are n, and the first corresponding relation includes：K+n=N-1, N are the number that Physical Resource Block constitutes member to the control channel that can be sent, and k value is the integer more than or equal to 0 and less than or equal to N-1, and n value is the integer more than or equal to 0 and less than or equal to N-1；Or, the corresponding control channel composition member's numberings of any RE in a time-frequency region in two time-frequency regions are k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are n, and the first corresponding relation includes：N=M0D (k+q, N), N is the number that Physical Resource Block constitutes member to the control channel that can be sent, MOD is modulo operation, k value is the integer more than or equal to 0 and less than or equal to N-1, n value is the integer more than or equal to 0 and less than or equal to N-1, and q is the integer more than or equal to 0 and less than or equal to N-1；Or, the corresponding control channel composition member's numberings of any RE in a time-frequency region in two time-frequency regions are k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are n, and the first corresponding relation includes：If k is more than P-1, n=T-1-k;If k is less than or equal to P-1, then n=P-1-k, T is the subcarrier number that Physical Resource Block is internally included, P=N/2, k value is the integer more than or equal to 0 and less than or equal to N-1, n value is the integer more than or equal to 0 and less than or equal to N-1, and N is the number that Physical Resource Block constitutes member to the control channel that can be sent, and N is even number.
Optionally, if according to temporal partitioning two time-frequency regions of size identical or be divided into four time-frequency regions of size identical according to time domain and frequency domain, the corresponding control channel composition member's numberings of at least one RE in one time-frequency region, there is the second corresponding relation between control channel composition member's numbering corresponding with the RE in other at least one time-frequency regions, including：If according to temporal partitioning two time-frequency regions of size identical or be divided into four time-frequency regions of size identical according to time domain and frequency domain, between the corresponding control channel composition member's numberings of any RE in one time-frequency region, control channel composition member's numbering corresponding with the RE in another time-frequency region the second corresponding relation is set up according to Second Rule.
Optionally, Physical Resource Block to there is g OFDM symbol on one sub-carrier, and g is even number, if according in two time-frequency regions of size identical of temporal partitioning, Second Rule includes：At two There is the second corresponding relation between control channel composition member's numbering corresponding to the corresponding RE of jth OFDM symbol in frequency domain in a time-frequency region and on i-th subcarrier of Physical Resource Block centering, control channel composition member's numbering corresponding to RE corresponding with+g/2 OFDM symbols of jth in two time-frequency regions in another time-frequency region and on i-th of subcarrier in Physical Resource Block；Or, Physical Resource Block to there is g OFDM symbol on one sub-carrier, and g is even number, if according in two time-frequency regions of size identical of temporal partitioning, Second Rule includes：There is the second corresponding relation between control channel composition member's numbering corresponding to the corresponding RE of j-th of OFDM symbol in two time-frequency regions in a time-frequency region and on i-th of subcarrier in Physical Resource Block pair, control channel composition member's numbering corresponding to RE corresponding with the g-j OFDM symbol in two time-frequency regions in another time-frequency region and on i-th of subcarrier in Physical Resource Block.
Optionally, the corresponding control channel composition member's numberings of any RE in a time-frequency region in two time-frequency regions are k, the corresponding control channel composition member's numbering n of in another time-frequency region a RE, and the second corresponding relation is：K+n=N-1, N are the number that Physical Resource Block constitutes member to the control channel that can be sent, and k value is the integer more than or equal to 0 and less than or equal to N-1, and n value is the integer more than or equal to 0 and less than or equal to N-1；Or, the corresponding control channel composition member's numberings of any RE in a time-frequency region in two time-frequency regions are k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are n, and the second corresponding relation includes：N=M0D (k+q, N), N is the number that the control channel that Physical Resource Block is internally included constitutes member, MOD is modulo operation, k value is the integer more than or equal to 0 and less than or equal to N-1, n value is the integer more than or equal to 0 and less than or equal to N-1, and q is the integer more than or equal to 0 and less than or equal to N-1；Or, the corresponding control channel composition member's numberings of any RE in a time-frequency region in two time-frequency regions are k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are n, and the second corresponding relation includes：If k is more than P-1, n=T-1-k;If k is less than or equal to P-1, n=P-1-k, T are the subcarrier number that Physical Resource Block is internally included, and P=N/2, N is the number that Physical Resource Block constitutes member to the control channel that can be sent, and N is even number.
Optionally, control channel composition member includes the corresponding sets of resource units of enhancing channel controller eCCE or enhancing resource unit group eREG.
Optionally, processor 12 specifically for：Determine eCCE corresponding RE in Physical Resource Block set, an eCCE correspondence any twos eREG;Or, determine eCCE corresponding RE in Physical Resource Block set, an eCCE correspondence any fours eREG. The base station that the present embodiment is provided, sending method with enhanced Physical Downlink Control Channel ePDCCH provided in an embodiment of the present invention is corresponding, for the execution equipment of this method, its process for performing this method can be found in Fig. 1-Fig. 5, and the corresponding description in the embodiment of the method shown in Figure 10, it will not be repeated here.
The base station that the present embodiment is provided, PRB pair can be divided at least two regions, what PRB pair included
RE, which corresponds respectively at least two, has the control channel composition member of different numberings, the corresponding control channel composition member's numberings of any RE at least two regions in a region, exist between control channel composition member's numbering corresponding with the RE in other at least one regions --- corresponding relation, so that on the corresponding RE of control channel composition member that base station is determined uniformly the control channel including various numberings member can be constituted, realize that the control channel composition member for removing pilot-frequency expense numbers included RE numbers and tried one's best equilibrium, the control channel of balanced various patterns constitutes the transmission performance of member.The structural representation of terminal one embodiment that Figure 12 provides for the present invention, as shown in figure 12, the physical resource that one ePDCCH is mapped to includes at least one control channel and constitutes member, one Physical Resource Block is to can be used in sending at least two control channels composition member, Physical Resource Block is to being divided at least two regions, Physical Resource Block corresponds respectively at least two control channels composition member to included resource unit RE, at least two control channels composition member has different control channel composition member's numberings respectively, the corresponding control channel composition member's numberings of at least one RE in a region at least two regions, exist between control channel composition member's numbering corresponding with the RE in other at least one regions at least two regions --- corresponding relation；
Terminal includes：Receiver 21 and processor 22;
Receiver 21, receives the control channel composition member that base station is sent, control channel composition member corresponding RE in Physical Resource Block is determined by base station for constituting member corresponding RE in Physical Resource Block by control channel；
Processor 22, is parsed for constituting the control information that member is carried to the control channel.Optionally, Physical Resource Block is to being divided at least two regions, including：Each Physical Resource Block of at least one Physical Resource Block centering is to being divided at least two regions.
Optionally, existing --- two control channels composition member's numbering of corresponding relation is differed.
Optionally, the RE at least one subcarrier that any one region at least two regions is included corresponds at least two control channels and constitutes member；Or, The RE at least one orthogonal frequency division multiplex OFDM symbol that any one region at least two regions is included corresponds at least two control channels and constitutes member.
Optionally, the RE at least one subcarrier that any one region at least two regions is included corresponds at least two control channels and constitutes member, including：The RE on each subcarrier that any one region at least two regions is included corresponds at least two control channels and constitutes member；Or,
The RE at least one orthogonal frequency division multiplex OFDM symbol that any one region at least two regions is included corresponds at least two control channels and constitutes member, including：The RE on each orthogonal frequency division multiplex OFDM symbol that any one region at least two regions is included corresponds at least two control channels and constitutes member.
Optionally, existing --- at least one RE that the control channel composition member of corresponding relation is numbered in corresponding two RE is the RE for not carrying demodulated reference signal DMRS.
Optionally, Physical Resource Block is to being divided at least two regions, including：Physical Resource Block is to being two time-frequency regions of size identical according to temporal partitioning；Or, Physical Resource Block according to frequency domain to being divided into two time-frequency regions of size identical；Or, Physical Resource Block to according to time domain and frequency domain be divided into four time-frequency area i of size identical or.
Optionally, the corresponding control channel composition member's numberings of at least one RE in a region at least two regions, exist between control channel composition member's numbering corresponding with the RE in other at least one regions at least two regions --- corresponding relation, including：If two time-frequency regions of the size identical divided according to frequency domain are divided into four time-frequency regions of size identical according to time domain and frequency domain, there is the first corresponding relation between the corresponding control channel composition member's numberings of at least one RE in one time-frequency region, control channel composition member's numbering corresponding with the RE in other at least one time-frequency regions；If according to temporal partitioning two time-frequency regions of size identical or be divided into four time-frequency regions of size identical according to time domain and frequency domain, there is the second corresponding relation between the corresponding control channel composition member's numberings of at least one RE in one time-frequency region, control channel composition member's numbering corresponding with the RE in other at least one time-frequency regions.
Optionally, if two time-frequency regions of the size identical divided according to frequency domain are divided into four time-frequency regions of size identical according to time domain and frequency domain, the corresponding control channel composition member's numberings of at least one RE in one time-frequency region, there is the first corresponding relation between control channel composition member's numbering corresponding with the RE in other at least one time-frequency regions, including：If the size identical Liang Ge time-frequencies area i that is divided according to frequency domain or according to when i or with frequency i or be divided into four time-frequency area i of size identical or, one Between the corresponding control channel composition member's numberings of any RE in time-frequency region, control channel composition member's numbering corresponding with the RE in another time-frequency region the first corresponding relation is set up according to the first rule.
Optionally, Physical Resource Block is to including f subcarrier, f is even number, if two time-frequency regions of size identical divided according to frequency domain, the first rule includes：There is the first corresponding relation between control channel composition member's numbering corresponding to the corresponding RE of j-th of OFDM symbol in two time-frequency regions in a time-frequency region and on i-th of subcarrier in Physical Resource Block pair, control channel composition member's numbering corresponding to RE corresponding with j-th of OFDM symbol in two time-frequency regions in another time-frequency region and on the individual subcarriers of the i-th+f/2 in Physical Resource Block；Or, Physical Resource Block is to including f subcarrier, f is the integer more than or equal to 2, if two time-frequency regions of size identical divided according to frequency domain, the first rule includes：There is the first corresponding relation between control channel composition member's numbering corresponding to the corresponding RE of j-th of OFDM symbol in two time-frequency regions in a time-frequency region and on i-th of subcarrier in Physical Resource Block pair, control channel composition member's numbering corresponding to RE corresponding with j-th of OFDM symbol in two time-frequency regions in another time-frequency region and on the f-i subcarrier in Physical Resource Block.
Optionally, the corresponding control channel composition member's numberings of any RE in a time-frequency region in two time-frequency regions are k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are n, and the first corresponding relation includes：K+n=N-1, N are the number that Physical Resource Block constitutes member to the control channel that can be sent, and k value is the integer more than or equal to 0 and less than or equal to N-1, and n value is the integer more than or equal to 0 and less than or equal to N-1；Or, the corresponding control channel composition member's numberings of any RE in a time-frequency region in two time-frequency regions are k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are n, and the first corresponding relation includes：N=M0D (k+q, N), N is the number that Physical Resource Block constitutes member to the control channel that can be sent, MOD is modulo operation, k value is the integer more than or equal to 0 and less than or equal to N-1, n value is the integer more than or equal to 0 and less than or equal to N-1, and q is the integer more than or equal to 0 and less than or equal to N-1；Or, the corresponding control channel composition member's numberings of any RE in a time-frequency region in two time-frequency regions are k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are n, and the first corresponding relation includes：If k is more than P-1, n=T-1-k;If k is less than or equal to P-1, then n=P-1-k, T is the subcarrier number that Physical Resource Block is internally included, P=N/2, k value is the integer more than or equal to 0 and less than or equal to N-1, n value is the integer more than or equal to 0 and less than or equal to N-1, and N is control of the Physical Resource Block to that can send The number of channel forming member, N is even number.
Optionally, if according to temporal partitioning two time-frequency regions of size identical or be divided into four time-frequency regions of size identical according to time domain and frequency domain, the corresponding control channel composition member's numberings of at least one RE in one time-frequency region, there is the second corresponding relation between control channel composition member's numbering corresponding with the RE in other at least one time-frequency regions, including：If according to temporal partitioning two time-frequency regions of size identical or be divided into four time-frequency regions of size identical according to time domain and frequency domain, between the corresponding control channel composition member's numberings of any RE in one time-frequency region, control channel composition member's numbering corresponding with the RE in another time-frequency region the second corresponding relation is set up according to Second Rule.
Optionally, Physical Resource Block to there is g OFDM symbol on one sub-carrier, and g is even number, if according in two time-frequency regions of size identical of temporal partitioning, Second Rule includes：There is the second corresponding relation between control channel composition member's numbering corresponding to the corresponding RE of jth OFDM symbol in two time-frequency regions in a time-frequency region and on i-th subcarrier in Physical Resource Block pair, control channel composition member's numbering corresponding to RE corresponding with+g/2 OFDM symbols of jth in two time-frequency regions in another time-frequency region and on i-th of subcarrier in Physical Resource Block；Or, Physical Resource Block to there is g OFDM symbol on one sub-carrier, and g is even number, if according in two time-frequency regions of size identical of temporal partitioning, Second Rule includes：There is the second corresponding relation between control channel composition member's numbering corresponding to the corresponding RE of j-th of OFDM symbol in two time-frequency regions in a time-frequency region and on i-th of subcarrier in Physical Resource Block pair, control channel composition member's numbering corresponding to RE corresponding with the g-j OFDM symbol in two time-frequency regions in another time-frequency region and on i-th of subcarrier in Physical Resource Block.
Optionally, the corresponding control channel composition member's numberings of any RE in a time-frequency region in two time-frequency regions are k, the corresponding control channel composition member's numbering n of in another time-frequency region a RE, and the second corresponding relation is：K+n=N-1, N are the number that Physical Resource Block constitutes member to the control channel that can be sent, and k value is the integer more than or equal to 0 and less than or equal to N-1, and n value is the integer more than or equal to 0 and less than or equal to N-1；Or, the corresponding control channel composition member's numberings of any RE in a time-frequency region in two time-frequency regions are k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are n, and the second corresponding relation includes：N=M0D (k+q, N), N is the number that the control channel that Physical Resource Block is internally included constitutes member, MOD is modulo operation, k value is the integer more than or equal to 0 and less than or equal to N-1, n value for more than or equal to 0 and less than or equal to N-1 integer, q be more than or equal to 0 and Integer less than or equal to N-1；Or, the corresponding control channel composition member's numberings of any RE in a time-frequency region in two time-frequency regions are k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are n, and the second corresponding relation includes：If k is more than P-1, n=T-1-k;If k is less than or equal to P-1, n=P-1-k, T are the subcarrier number that Physical Resource Block is internally included, and P=N/2, N is the number that Physical Resource Block constitutes member to the control channel that can be sent, and N is even number.
Optionally, control channel composition member includes the corresponding sets of resource units of enhancing channel controller eCCE or enhancing resource unit group eREG.
The terminal that the present embodiment is provided, sending method with enhanced Physical Downlink Control Channel ePDCCH provided in an embodiment of the present invention is corresponding, for the execution equipment of this method, its process for performing this method can be found in the corresponding description in the embodiment of the method shown in Fig. 3-Fig. 9, will not be repeated here.
The terminal that the present embodiment is provided, the sending method for the enhanced Physical Downlink Control Channel ePDCCH that the present embodiment is provided, PRB pair can be divided at least two regions, the RE that PRB pair includes, which corresponds respectively at least two, has the control channel composition member of different numberings, the corresponding control channel composition member's numberings of any RE at least two regions in a region, exist between control channel composition member's numbering corresponding with the RE in other at least one regions --- corresponding relation, so that on the corresponding RE of control channel composition member that terminal is received uniformly the control channel including various numberings member can be constituted, realize that the control channel composition member for removing pilot-frequency expense numbers included RE numbers and tried one's best equilibrium, the control channel of balanced various patterns constitutes the transmission performance of member.
It is apparent to those skilled in the art that, for convenience and simplicity of description, only it is illustrated with the division of above-mentioned each functional module, in practical application, it can as needed and by above-mentioned functions distribute and be completed by different functional modules, the internal structure of device is divided into different functional modules, to complete all or part of function described above.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 module or 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 the form of SFU software functional unit is realized.
If the integrated unit is realized using in the form of SFU software functional unit and as independent production marketing or in use, can be stored in a computer read/write memory medium.Understood based on such, the part or all or part of the technical scheme that the technical scheme of the application substantially contributes to prior art in other words can be embodied in the form of software product, the computer software product 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 all or part of step of each embodiment methods described of the application) is performed.And foregoing storage medium includes：U disks, mobile hard disk, read-only storage（ROM, Read-Only Memory), random access memory（RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.
Described above, 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 (1)

  1. Claim
    1, a kind of enhanced Physical Downlink Control Channel ePDCCH sending method, it is characterized in that, the physical resource that one ePDCCH is mapped to includes at least one control channel and constitutes member, one Physical Resource Block is to can be used in sending at least two control channels composition member, the Physical Resource Block is to being divided at least two regions, the Physical Resource Block corresponds respectively at least two control channels composition member to included resource unit RE, the at least two control channels composition member has different control channel composition member's numberings respectively, the corresponding control channel composition member's numberings of at least one RE in a region at least two region, exist between control channel composition member's numbering corresponding with the RE in other at least one regions at least two region --- corresponding relation；
    Methods described includes：
    Base station determines control channel composition member corresponding RE in the Physical Resource Block；
    The base station constitutes member corresponding RE in the Physical Resource Block by the control channel and sends the control information that the control channel constitutes member's carrying.
    2nd, according to the method described in claim 1, it is characterised in that the Physical Resource Block to be divided at least two area i or, including：
    Each Physical Resource Block of at least one Physical Resource Block centering is to being divided at least two regions.
    3rd, method according to claim 1 or 2, it is characterised in that the two control channels composition member's numbering that there is one-to-one relationship is differed.
    4th, the method according to any one of claim 1-3, it is characterised in that
    The RE at least one subcarrier that any one region at least two region is included corresponds at least two control channels and constitutes member；Or,
    The RE at least one orthogonal frequency division multiplex OFDM symbol that any one region at least two region is included corresponds at least two control channels and constitutes member.
    5th, method according to claim 4, it is characterised in that the RE at least one subcarrier that any one region at least two region is included corresponds at least two control channels and constitutes member, including：
    The RE on each subcarrier that any one region at least two region is included corresponds at least two control channels and constitutes member；Or,
    At least one OFDM that any one region at least two region is included RE in OFDM symbol corresponds at least two control channels and constitutes member, including：The RE on each orthogonal frequency division multiplex OFDM symbol that any one region at least two region is included corresponds at least two control channels and constitutes member.
    6th, the method according to any one of claim 1-5, it is characterised in that at least one RE that the control channel composition member of the presence --- corresponding relation is numbered in corresponding two RE is the RE for not carrying demodulated reference signal DMRS.
    7th, the method according to any one of claim 1-6, it is characterised in that the Physical Resource Block to being divided at least two regions, including：
    The Physical Resource Block is to being two time-frequency regions of size identical according to temporal partitioning；Or, the Physical Resource Block according to frequency domain to being divided into two time-frequency regions of size identical；Or, the Physical Resource Block according to time domain and frequency domain to being divided into four time-frequency regions of size identical.
    8th, method according to claim 7, it is characterized in that, the corresponding control channel composition member's numberings of at least one RE in a region at least two region, there is one-to-one relationship between control channel composition member's numbering corresponding with the RE in other at least one regions at least two region, including：
    If two time-frequency regions of the size identical divided according to frequency domain are divided into four time-frequency regions of size identical according to time domain and frequency domain, there is the first corresponding relation between the corresponding control channel composition member's numberings of at least one RE in one time-frequency region, control channel composition member's numbering corresponding with the RE in other at least one time-frequency regions；
    If according to temporal partitioning two time-frequency regions of size identical or be divided into four time-frequency regions of size identical according to time domain and frequency domain, there is the second corresponding relation between the corresponding control channel composition member's numberings of at least one RE in one time-frequency region, control channel composition member's numbering corresponding with the RE in other at least one time-frequency regions.
    9th, method according to claim 8, it is characterized in that, if described two time-frequency regions of the size identical divided according to frequency domain are divided into four time-frequency regions of size identical according to time domain and frequency domain, the corresponding control channel composition member's numberings of at least one RE in one time-frequency region, there is the first corresponding relation between control channel composition member's numbering corresponding with the RE in other at least one time-frequency regions, including：
    If two time-frequency regions of the size identical divided according to frequency domain or in the corresponding Control Channel Groups of any RE being divided into according to time domain and frequency domain in four time-frequency regions of size identical, a time-frequency region Into member's numbering, the first corresponding relation is set up according to the first rule between control channel composition member's numbering corresponding with the RE in another time-frequency region.
    10th, method according to claim 9, it is characterised in that the Physical Resource Block is to including f subcarrier, the f is even number, if two time-frequency regions of size identical divided according to frequency domain, first rule includes：There is first corresponding relation between control channel composition member's numbering corresponding to the corresponding RE of j-th of OFDM symbol in described two time-frequency regions in a time-frequency region and on i-th of subcarrier in the Physical Resource Block pair, control channel composition member's numbering corresponding to RE corresponding with j-th of OFDM symbol in described two time-frequency regions in another time-frequency region and on the individual subcarriers of the i-th+f/2 in the Physical Resource Block；Or,
    The Physical Resource Block is to including f subcarrier, the f is the integer more than or equal to 2, if two time-frequency regions of size identical divided according to frequency domain, first rule includes：There is first corresponding relation between control channel composition member's numbering corresponding to the corresponding RE of jth OFDM symbol in described two time-frequency regions in a time-frequency region and on i-th of subcarrier in the Physical Resource Block pair, control channel composition member's numbering corresponding to RE corresponding with the jth OFDM symbol in described two time-frequency regions in another time-frequency region and on the f-i subcarrier in the Physical Resource Block.
    11st, the method according to claim 9 or 10, it is characterised in that
    The corresponding control channel composition member's numberings of any RE in a time-frequency region in described two time-frequency regions are k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are n, and first corresponding relation includes：K+n=N-1, N is the number that the Physical Resource Block constitutes member to the control channel that can be sent, k value is the integer more than or equal to 0 and less than or equal to N-1, and n value is the integer more than or equal to 0 and less than or equal to N-1；Or,
    The corresponding control channel composition member's numberings of any RE in a time-frequency region in described two time-frequency regions are k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are n, and first corresponding relation includes：N=M0D (k+q, N), N is the number that the Physical Resource Block constitutes member to the control channel that can be sent, MOD is modulo operation, k value is the integer more than or equal to 0 and less than or equal to N-1, n value is the integer more than or equal to 0 and less than or equal to N-1, and q is the integer more than or equal to 0 and less than or equal to N-1；Or, the corresponding control channel composition member's numberings of any RE in a time-frequency region in described two time-frequency regions are k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are N, first corresponding relation includes：If k is more than P-1, n=T-1-k;If k is less than or equal to P-1, then n=P-1-k, T is the subcarrier number that the Physical Resource Block is internally included, P=N/2, k value is the integer more than or equal to 0 and less than or equal to N-1, n value is the integer more than or equal to 0 and less than or equal to N-1, and N is the number that the Physical Resource Block constitutes member to the control channel that can be sent, and N is even number.
    12nd, method according to claim 8, it is characterized in that, if described two time-frequency regions of size identical according to temporal partitioning are being divided into four time-frequency regions of size identical according to time domain and frequency domain, the corresponding control channel composition member's numberings of at least one RE in one time-frequency region, there is the second corresponding relation between control channel composition member's numbering corresponding with the RE in other at least one time-frequency regions, including：
    If according to temporal partitioning two time-frequency regions of size identical or be divided into four time-frequency regions of size identical according to time domain and frequency domain, between the corresponding control channel composition member's numberings of any RE in one time-frequency region, control channel composition member's numbering corresponding with the RE in another time-frequency region the second corresponding relation is set up according to Second Rule.
    13rd, the method according to claim 12, characterized in that, the Physical Resource Block to there is g OFDM symbol on one sub-carrier, the g is even number, if according in two time-frequency regions of size identical of temporal partitioning, the Second Rule includes：There is second corresponding relation between control channel composition member's numbering corresponding to the corresponding RE of j-th of OFDM symbol in described two time-frequency regions in a time-frequency region and on i-th of subcarrier in the Physical Resource Block pair, control channel composition member's numbering corresponding to RE corresponding with+g/2 OFDM symbols of jth in described two time-frequency regions in another time-frequency region and on i-th of subcarrier in the Physical Resource Block；Or,
    The Physical Resource Block to there is g OFDM symbol on one sub-carrier, and the g is even number, if according in two time-frequency regions of size identical of temporal partitioning, the Second Rule includes：There is second corresponding relation between control channel composition member's numbering corresponding to the corresponding RE of j-th of OFDM symbol in described two time-frequency regions in a time-frequency region and on i-th subcarrier in the Physical Resource Block pair, control channel composition member's numbering corresponding to RE corresponding with the g-j OFDM symbol in described two time-frequency regions in another time-frequency region and on i-th subcarrier in the Physical Resource Block.
    14th, the method according to claim 12 or 13, it is characterised in that in described two time-frequencies The corresponding control channel composition member's numberings of any RE in a time-frequency region in region are k, the corresponding control channel composition member's numbering n of in another time-frequency region a RE, and second corresponding relation is：K+n=N-1, N is the number that the Physical Resource Block constitutes member to the control channel that can be sent, k value is the integer more than or equal to 0 and less than or equal to N-1, and n value is the integer more than or equal to 0 and less than or equal to N-1；Or,
    The corresponding control channel composition member's numberings of any RE in a time-frequency region in described two time-frequency regions are k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are n, and second corresponding relation includes：N=MOD (k+q, N), N is the number that the control channel that the Physical Resource Block is internally included constitutes member, MOD is modulo operation, k value is the integer more than or equal to 0 and less than or equal to N-1, n value is the integer more than or equal to 0 and less than or equal to N-1, and q is the integer more than or equal to 0 and less than or equal to N-1；Or,
    The corresponding control channel composition member's numberings of any RE in a time-frequency region in described two time-frequency regions are k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are n, and second corresponding relation includes：If k is more than P-1, n=T-1-k;If k is less than or equal to P-1, n=P-1-k, T is the subcarrier number that the Physical Resource Block is internally included, and P=N/2, N is the number that the Physical Resource Block constitutes member to the control channel that can be sent, and N is even number.
    15th, the method according to any one of claim 1-14, it is characterised in that the control channel composition member includes the corresponding sets of resource units of enhancing channel controller eCCE or enhancing resource unit group eREG.
    16th, the method according to claim 15, it is characterised in that base station determines that control channel constitutes member corresponding RE in the Physical Resource Block, including：
    The base station determines the RE set corresponding to an eCCE, one eCCE correspondence any twos eREG;Or,
    The base station determines the RE set corresponding to an eCCE, one eCCE correspondence any fours eREG.
    17th, a kind of enhanced Physical Downlink Control Channel ePDCCH sending method, it is characterized in that, the physical resource that one ePDCCH is mapped to includes at least one control channel and constitutes member, one Physical Resource Block is to can be used in sending at least two control channels composition member, the Physical Resource Block is to being divided at least two regions, the Physical Resource Block corresponds respectively at least two control channels composition member to included resource unit RE, and at least two control channels composition member has different respectively Control channel composition member's numbering, exist between the corresponding control channel composition member's numberings of at least one RE in a region at least two region, control channel composition member's numbering corresponding with the RE in other at least one regions at least two region --- corresponding relation；
    Methods described includes：
    Terminal constitutes member corresponding RE in the Physical Resource Block by control channel and receives the control channel composition member that base station is sent, and control channel composition member corresponding RE in the Physical Resource Block is determined by the base station；
    The control information that control channel composition member described in the terminal-pair is carried is parsed.
    18th, the method according to claim 17, it is characterised in that the Physical Resource Block to be divided at least two area i or, including：
    Each Physical Resource Block of at least one Physical Resource Block centering is to being divided at least two regions.
    19th, the method according to claim 17 or 18, it is characterised in that two control channels composition member's numbering of the presence --- corresponding relation is differed.
    20th, the method according to claim any one of 17-19, it is characterised in that the RE at least one subcarrier that any one region at least two region is included corresponds at least two control channels and constitutes member；Or,
    At least one OFDM that any one region at least two region is included
    RE in OFDM symbol corresponds at least two control channels and constitutes member.
    21st, the method according to claim 20, it is characterised in that the RE at least one subcarrier that any one region at least two region is included corresponds at least two control channels and constitutes member, including：
    The RE on each subcarrier that any one region at least two region is included corresponds at least two control channels and constitutes member；Or,
    At least one OFDM that any one region at least two region is included
    RE in OFDM symbol corresponds at least two control channels and constitutes member, including：
    The RE on each orthogonal frequency division multiplex OFDM symbol that any one region at least two region is included corresponds at least two control channels and constitutes member.
    22nd, the method according to claim any one of 17-21, it is characterised in that the control channel composition member that there is one-to-one relationship numbers at least one RE in corresponding two RE for not Carry demodulated reference signal DMRS RE.
    23rd, the method according to claim any one of 17-22, it is characterised in that the Physical Resource Block to being divided at least two regions, including：
    The Physical Resource Block is to being two time-frequency regions of size identical according to temporal partitioning；Or, the Physical Resource Block according to frequency domain to being divided into two time-frequency regions of size identical；Or, the Physical Resource Block according to time domain and frequency domain to being divided into four time-frequency regions of size identical.
    24th, the method according to claim 23, it is characterized in that, the corresponding control channel composition member's numberings of at least one RE in a region at least two region, exist between control channel composition member's numbering corresponding with the RE in other at least one regions at least two region --- corresponding relation, including：
    If two time-frequency regions of the size identical divided according to frequency domain are divided into four time-frequency regions of size identical according to time domain and frequency domain, there is the first corresponding relation between the corresponding control channel composition member's numberings of at least one RE in one time-frequency region, control channel composition member's numbering corresponding with the RE in other at least one time-frequency regions；
    If according to temporal partitioning two time-frequency regions of size identical or be divided into four time-frequency regions of size identical according to time domain and frequency domain, there is the second corresponding relation between the corresponding control channel composition member's numberings of at least one RE in one time-frequency region, control channel composition member's numbering corresponding with the RE in other at least one time-frequency regions.
    25th, the method according to claim 24, it is characterized in that, if described two time-frequency regions of the size identical divided according to frequency domain are divided into four time-frequency regions of size identical according to time domain and frequency domain, the corresponding control channel composition member's numberings of at least one RE in one time-frequency region, there is the first corresponding relation between control channel composition member's numbering corresponding with the RE in other at least one time-frequency regions, including：
    If two time-frequency regions of the size identical divided according to frequency domain are being divided into four time-frequency regions of size identical according to time domain and frequency domain, between the corresponding control channel composition member's numberings of any RE in one time-frequency region, control channel composition member's numbering corresponding with the RE in another time-frequency region the first corresponding relation is set up according to the first rule.
    26th, the method according to claim 25, it is characterised in that the Physical Resource Block is to including f subcarrier, the f is even number, if two time-frequency regions of size identical divided according to frequency domain, first rule includes：In a time-frequency region and positioned at the physics in described two time-frequency regions There is first corresponding relation between control channel composition member's numbering corresponding to the corresponding RE of j-th of OFDM symbol on i-th of subcarrier of resource block pair, control channel composition member's numbering corresponding to RE corresponding with j-th of OFDM symbol in described two time-frequency regions in another time-frequency region and on the individual subcarriers of the i-th+f/2 in the Physical Resource Block；Or,
    The Physical Resource Block is to including f subcarrier, the f is the integer more than or equal to 2, if two time-frequency regions of size identical divided according to frequency domain, first rule includes：There is first corresponding relation between control channel composition member's numbering corresponding to the corresponding RE of jth OFDM symbol in described two time-frequency regions in a time-frequency region and on i-th of subcarrier in the Physical Resource Block pair, control channel composition member's numbering corresponding to RE corresponding with the jth OFDM symbol in described two time-frequency regions in another time-frequency region and on the f-i subcarrier in the Physical Resource Block.
    27th, the method according to claim 25 or 26, it is characterized in that, the corresponding control channel composition member's numberings of any RE in a time-frequency region in described two time-frequency regions are k, the corresponding control channel composition member's numberings of a RE in another time-frequency region are η, and first corresponding relation includes：K+n=N-1, N is the number that the Physical Resource Block constitutes member to the control channel that can be sent, k value is the integer more than or equal to 0 and less than or equal to N-1, and n value is the integer more than or equal to 0 and less than or equal to N-1；Or,
    The corresponding control channel composition member's numberings of any RE in a time-frequency region in described two time-frequency regions are k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are n, and first corresponding relation includes：N=M0D (k+q, N), N is the number that the Physical Resource Block constitutes member to the control channel that can be sent, MOD is modulo operation, k value is the integer more than or equal to 0 and less than or equal to N-1, n value is the integer more than or equal to 0 and less than or equal to N-1, and q is the integer more than or equal to 0 and less than or equal to N-1；Or, the corresponding control channel composition member's numberings of any RE in a time-frequency region in described two time-frequency regions are k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are n, and first corresponding relation includes：If k is more than P-1, n=T-1-k;If k is less than or equal to P-1, then n=P-1-k, T is the subcarrier number that the Physical Resource Block is internally included, P=N/2, k value is the integer more than or equal to 0 and less than or equal to N-1, n value is the integer more than or equal to 0 and less than or equal to N-1, and N is the number that the Physical Resource Block constitutes member to the control channel that can be sent, and N is even number. 28th, the method according to claim 27, it is characterized in that, if described two time-frequency regions of size identical according to temporal partitioning are being divided into four time-frequency regions of size identical according to time domain and frequency domain, the corresponding control channel composition member's numberings of at least one RE in one time-frequency region, there is the second corresponding relation between control channel composition member's numbering corresponding with the RE in other at least one time-frequency regions, including：
    If according to temporal partitioning two time-frequency regions of size identical or be divided into four time-frequency regions of size identical according to time domain and frequency domain, between the corresponding control channel composition member's numberings of any RE in one time-frequency region, control channel composition member's numbering corresponding with the RE in another time-frequency region the second corresponding relation is set up according to Second Rule.
    29th, the method according to claim 28, characterized in that, the Physical Resource Block to there is g OFDM symbol on one sub-carrier, the g is even number, if according in two time-frequency regions of size identical of temporal partitioning, the Second Rule includes：There is second corresponding relation between control channel composition member's numbering corresponding to the corresponding RE of j-th of OFDM symbol in described two time-frequency regions in a time-frequency region and on i-th of subcarrier in the Physical Resource Block pair, control channel composition member's numbering corresponding to RE corresponding with+g/2 OFDM symbols of jth in described two time-frequency regions in another time-frequency region and on i-th of subcarrier in the Physical Resource Block；Or,
    The Physical Resource Block to there is g OFDM symbol on one sub-carrier, and the g is even number, if according in two time-frequency regions of size identical of temporal partitioning, the Second Rule includes：There is second corresponding relation between control channel composition member's numbering corresponding to the corresponding RE of j-th of OFDM symbol in described two time-frequency regions in a time-frequency region and on i-th subcarrier in the Physical Resource Block pair, control channel composition member's numbering corresponding to RE corresponding with the g-j OFDM symbol in described two time-frequency regions in another time-frequency region and on i-th subcarrier in the Physical Resource Block.
    30th, the method according to claim 28 or 29, it is characterized in that, the corresponding control channel composition member's numberings of any RE in a time-frequency region in described two time-frequency regions are k, the corresponding control channels of a RE in another time-frequency region constitute member's numbering n, and second corresponding relation is：K+n=N-1, N is the number that the Physical Resource Block constitutes member to the control channel that can be sent, k value is the integer more than or equal to 0 and less than or equal to N-1, and n value is the integer more than or equal to 0 and less than or equal to N-1；Or, The corresponding control channel composition member's numberings of any RE in a time-frequency region in described two time-frequency regions are k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are n, and second corresponding relation includes：N=MOD (k+q, N), N is the number that the control channel that the Physical Resource Block is internally included constitutes member, MOD is modulo operation, k value is the integer more than or equal to 0 and less than or equal to N-1, n value is the integer more than or equal to 0 and less than or equal to N-1, and q is the integer more than or equal to 0 and less than or equal to N-1；Or,
    The corresponding control channel composition member's numberings of any RE in a time-frequency region in described two time-frequency regions are k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are n, and second corresponding relation includes：If k is more than P-1, n=T-1-k;If k is less than or equal to P-1, n=P-1-k, T is the subcarrier number that the Physical Resource Block is internally included, and P=N/2, N is the number that the Physical Resource Block constitutes member to the control channel that can be sent, and N is even number.
    31st, according to any one of claim 17-30 method, it is characterised in that the control channel composition member includes the corresponding sets of resource units of enhancing channel controller eCCE or enhancing resource unit group eREG.
    32, a kind of base station, it is characterized in that, the physical resource that one ePDCCH is mapped to includes at least one control channel and constitutes member, one Physical Resource Block is to can be used in sending at least two control channels composition member, the Physical Resource Block is to being divided at least two regions, the Physical Resource Block corresponds respectively at least two control channels composition member to included resource unit RE, the at least two control channels composition member has different control channel composition member's numberings respectively, the corresponding control channel composition member's numberings of at least one RE in a region at least two region, exist between control channel composition member's numbering corresponding with the RE in other at least one regions at least two region --- corresponding relation；
    The base station includes：
    Processor, for determining control channel composition member corresponding RE in the Physical Resource Block;Transmitter, constitutes member corresponding RE in the Physical Resource Block by the control channel and sends the control information that the control channel constitutes member's carrying.
    33rd, the base station according to claim 32, it is characterised in that the Physical Resource Block to being divided at least two regions, including：
    Each Physical Resource Block of at least one Physical Resource Block centering is to being divided at least two regions. 34th, the base station according to claim 32 or 33, it is characterised in that two control channels composition member's numbering of the presence --- corresponding relation is differed.
    35th, the base station according to claim any one of 32-34, it is characterised in that the RE at least one subcarrier that any one region at least two region is included corresponds at least two control channels and constitutes member；Or, the RE at least one orthogonal frequency division multiplex OFDM symbol for being included of any one region at least two region corresponds at least two control channels and constitutes member.
    36th, the base station according to claim 35, it is characterised in that the RE at least one subcarrier that any one region at least two region is included corresponds at least two control channels and constitutes member, including：The RE on each subcarrier that any one region at least two region is included corresponds at least two control channels and constitutes member；Or,
    The RE at least one orthogonal frequency division multiplex OFDM symbol that any one region at least two region is included corresponds at least two control channels and constitutes member, including：
    The RE on each orthogonal frequency division multiplex OFDM symbol that any one region at least two region is included corresponds at least two control channels and constitutes member.
    37th, the base station according to claim any one of 32-36, it is characterised in that at least one RE that the control channel composition member that there is one-to-one relationship is numbered in corresponding two RE is the RE for not carrying demodulated reference signal DMRS.
    38th, the base station according to claim any one of 32-37, it is characterised in that the Physical Resource Block to being divided at least two regions, including：The Physical Resource Block is to being two time-frequency regions of size identical according to temporal partitioning；Or, the Physical Resource Block according to frequency domain to being divided into two time-frequency regions of size identical；Or, the Physical Resource Block to according to time domain and frequency domain be divided into four time-frequency area i of size identical or.
    39th, the base station according to claim 38, it is characterized in that, the corresponding control channel composition member's numberings of at least one RE in a region at least two region, exist between control channel composition member's numbering corresponding with the RE in other at least one regions at least two region --- corresponding relation, including：
    If two time-frequency regions of the size identical divided according to frequency domain are divided into four time-frequency regions of size identical according to time domain and frequency domain, there is the first corresponding relation between the corresponding control channel composition member's numberings of at least one RE in one time-frequency region, control channel composition member's numbering corresponding with the RE in other at least one time-frequency regions； If according to temporal partitioning two time-frequency regions of size identical or be divided into four time-frequency regions of size identical according to time domain and frequency domain, there is the second corresponding relation between the corresponding control channel composition member's numberings of at least one RE in one time-frequency region, control channel composition member's numbering corresponding with the RE in other at least one time-frequency regions.
    40th, the base station according to claim 39, it is characterized in that, if described two time-frequency regions of the size identical divided according to frequency domain are divided into four time-frequency regions of size identical according to time domain and frequency domain, the corresponding control channel composition member's numberings of at least one RE in one time-frequency region, there is the first corresponding relation between control channel composition member's numbering corresponding with the RE in other at least one time-frequency regions, including：
    If two time-frequency regions of the size identical divided according to frequency domain are being divided into four time-frequency regions of size identical according to time domain and frequency domain, between the corresponding control channel composition member's numberings of any RE in one time-frequency region, control channel composition member's numbering corresponding with the RE in another time-frequency region the first corresponding relation is set up according to the first rule.
    41st, the base station according to claim 40, it is characterised in that the Physical Resource Block is to including f subcarrier, the f is even number, if two time-frequency regions of size identical divided according to frequency domain, first rule includes：There is first corresponding relation between control channel composition member's numbering corresponding to the corresponding RE of j-th of OFDM symbol in described two time-frequency regions in a time-frequency region and on i-th of subcarrier in the Physical Resource Block pair, control channel composition member's numbering corresponding to RE corresponding with j-th of OFDM symbol in described two time-frequency regions in another time-frequency region and on the individual subcarriers of the i-th+f/2 in the Physical Resource Block；Or, the Physical Resource Block is to including f subcarrier, the f is the integer more than or equal to 2, if two time-frequency regions of size identical divided according to frequency domain, first rule includes：There is first corresponding relation between control channel composition member's numbering corresponding to the corresponding RE of j-th of OFDM symbol in described two time-frequency regions in a time-frequency region and on i-th of subcarrier in the Physical Resource Block pair, control channel composition member's numbering corresponding to RE corresponding with j-th of OFDM symbol in described two time-frequency regions in another time-frequency region and on the f-i subcarrier in the Physical Resource Block.
    42nd, the base station according to claim 40 or 41, it is characterized in that, the corresponding control channel composition member's numberings of any RE in a time-frequency region in described two time-frequency regions are k, the corresponding control channel composition member's numberings of a RE in another time-frequency region are η, and first corresponding relation includes：K+n=N-1, N are that the Physical Resource Block constitutes member to the control channel that can be sent Number, k value is the integer more than or equal to 0 and less than or equal to N-1, and n value is the integer more than or equal to 0 and less than or equal to N-1；Or, the corresponding control channel composition member's numberings of any RE in a time-frequency region in described two time-frequency regions are k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are n, and first corresponding relation includes：N=MOD (k+q, N), N is the number that the Physical Resource Block constitutes member to the control channel that can be sent, MOD is modulo operation, k value is the integer more than or equal to 0 and less than or equal to N-1, n value is the integer more than or equal to 0 and less than or equal to N-1, and q is the integer more than or equal to 0 and less than or equal to N-1；Or, the corresponding control channel composition member's numberings of any RE in a time-frequency region in described two time-frequency regions are k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are n, and first corresponding relation includes：If k is more than P-1, n=T-1-k;If k is less than or equal to P-1, then n=P-1-k, T is the subcarrier number that the Physical Resource Block is internally included, P=N/2, k value is the integer more than or equal to 0 and less than or equal to N-1, n value is the integer more than or equal to 0 and less than or equal to N-1, and N is the number that the Physical Resource Block constitutes member to the control channel that can be sent, and N is even number.
    43rd, the base station according to claim 42, it is characterized in that, if described two time-frequency regions of size identical according to temporal partitioning are being divided into four time-frequency regions of size identical according to time domain and frequency domain, the corresponding control channel composition member's numberings of at least one RE in one time-frequency region, there is the second corresponding relation between control channel composition member's numbering corresponding with the RE in other at least one time-frequency regions, including：If according to temporal partitioning two time-frequency regions of size identical or be divided into four time-frequency regions of size identical according to time domain and frequency domain, between the corresponding control channel composition member's numberings of any RE in one time-frequency region, control channel composition member's numbering corresponding with the RE in another time-frequency region the second corresponding relation is set up according to Second Rule.
    44th, the base station according to claim 43, characterized in that, the Physical Resource Block to there is g OFDM symbol on one sub-carrier, the g is even number, if according in two time-frequency regions of size identical of temporal partitioning, the Second Rule includes：There is second corresponding relation between control channel composition member's numbering corresponding to the corresponding RE of j-th of OFDM symbol in described two time-frequency regions in a time-frequency region and on i-th of subcarrier in the Physical Resource Block pair, control channel composition member's numbering corresponding to RE corresponding with+g/2 OFDM symbols of jth in described two time-frequency regions in another time-frequency region and on i-th of subcarrier in the Physical Resource Block；Or, the Physical Resource Block to there is g OFDM symbol on one sub-carrier, and the g is even number, If according in two time-frequency regions of size identical of temporal partitioning, the Second Rule includes：There is second corresponding relation between control channel composition member's numbering corresponding to the corresponding RE of j-th of OFDM symbol in described two time-frequency regions in a time-frequency region and on i-th subcarrier in the Physical Resource Block pair, control channel composition member's numbering corresponding to RE corresponding with the g-j OFDM symbol in described two time-frequency regions in another time-frequency region and on i-th subcarrier in the Physical Resource Block.
    45th, the base station according to claim 43 or 44, it is characterized in that, the corresponding control channel composition member's numberings of any RE in a time-frequency region in described two time-frequency regions are k, the corresponding control channels of a RE in another time-frequency region constitute member's numbering n, and second corresponding relation is：K+n=N-1, N is the number that the Physical Resource Block constitutes member to the control channel that can be sent, k value is the integer more than or equal to 0 and less than or equal to N-1, and n value is the integer more than or equal to 0 and less than or equal to N-1；Or, the corresponding control channel composition member's numberings of any RE in a time-frequency region in described two time-frequency regions are k, the corresponding control channel composition member's numberings of a RE in another time-frequency region are n, and second corresponding relation includes：N=MOD (k+q, N), N is the number that the control channel that the Physical Resource Block is internally included constitutes member, MOD is that ear ^ is not operated, k value is the integer more than or equal to 0 and less than or equal to N-1, n value is the integer more than or equal to 0 and less than or equal to N-1, and q is the integer more than or equal to 0 and less than or equal to N-1；Or, the corresponding control channel composition member's numberings of any RE in a time-frequency region in described two time-frequency regions are k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are n, and second corresponding relation includes：If k is more than P-1, n=T-1-k;If k is less than or equal to P-1, n=P-1-k, T are the subcarrier number that the Physical Resource Block is internally included, and P=N/2, N is the number that the Physical Resource Block constitutes member to the control channel that can be sent, and N is even number.
    46th, the base station according to claim any one of 32-45, it is characterised in that the control channel composition member includes the corresponding sets of resource units of enhancing channel controller eCCE or enhancing resource unit group eREG.
    47th, base station according to claim 46, it is characterised in that the processor specifically for：Determine the RE set corresponding to an eCCE, one eCCE correspondence any twos eREG;Or, the base station determines the RE set corresponding to an eCCE, one eCCE correspondence any fours eREG. 48, a kind of terminal, it is characterized in that, the physical resource that one ePDCCH is mapped to includes at least one control channel and constitutes member, one Physical Resource Block is to can be used in sending at least two control channels composition member, the Physical Resource Block is to being divided at least two regions, the Physical Resource Block corresponds respectively at least two control channels composition member to included resource unit RE, the at least two control channels composition member has different control channel composition member's numberings respectively, the corresponding control channel composition member's numberings of at least one RE in a region at least two region, exist between control channel composition member's numbering corresponding with the RE in other at least one regions at least two region --- corresponding relation；
    The terminal includes：
    Receiver, receives the control channel composition member that base station is sent, control channel composition member corresponding RE in the Physical Resource Block is determined by the base station for constituting member corresponding RE in the Physical Resource Block by control channel；
    Processor, is parsed for constituting the control information that member is carried to the control channel.
    49th, the terminal according to claim 48, it is characterised in that the Physical Resource Block to being divided at least two regions, including：Each Physical Resource Block of at least one Physical Resource Block centering is to being divided at least two regions.
    50th, the terminal according to claim 48 or 49, it is characterised in that two control channels composition member's numbering of the presence --- corresponding relation is differed.
    51st, the terminal according to claim any one of 48-50, it is characterised in that the RE at least one subcarrier that any one region at least two region is included corresponds at least two control channels and constitutes member；Or,
    The RE at least one orthogonal frequency division multiplex OFDM symbol that any one region at least two region is included corresponds at least two control channels and constitutes member.
    52nd, the terminal according to claim 51, it is characterised in that the RE at least one subcarrier that any one region at least two region is included corresponds at least two control channels and constitutes member, including：The RE on each subcarrier that any one region at least two region is included corresponds at least two control channels and constitutes member；Or,
    The RE at least one orthogonal frequency division multiplex OFDM symbol that any one region at least two region is included corresponds at least two control channels and constitutes member, including：RE correspondences on each orthogonal frequency division multiplex OFDM symbol that any one region at least two region is included Member is constituted at least two control channels.
    53rd, the terminal according to claim any one of 48-52, it is characterised in that at least one RE that the control channel composition member that there is one-to-one relationship is numbered in corresponding two RE is the RE for not carrying demodulated reference signal DMRS.
    54th, the terminal according to claim any one of 48-53, it is characterised in that the Physical Resource Block to being divided at least two regions, including：The Physical Resource Block is to being two time-frequency regions of size identical according to temporal partitioning；Or, the Physical Resource Block according to frequency domain to being divided into two time-frequency regions of size identical；Or, the Physical Resource Block to according to time domain and frequency domain be divided into four time-frequency area i of size identical or.
    55th, the terminal according to claim 54, it is characterized in that, the corresponding control channel composition member's numberings of at least one RE in a region at least two region, exist between control channel composition member's numbering corresponding with the RE in other at least one regions at least two region --- corresponding relation, including：If two time-frequency regions of the size identical divided according to frequency domain are divided into four time-frequency regions of size identical according to time domain and frequency domain, there is the first corresponding relation between the corresponding control channel composition member's numberings of at least one RE in one time-frequency region, control channel composition member's numbering corresponding with the RE in other at least one time-frequency regions；If according to temporal partitioning two time-frequency regions of size identical or be divided into four time-frequency regions of size identical according to time domain and frequency domain, there is the second corresponding relation between the corresponding control channel composition member's numberings of at least one RE in one time-frequency region, control channel composition member's numbering corresponding with the RE in other at least one time-frequency regions.
    56th, the terminal according to claim 55, it is characterized in that, if described two time-frequency regions of the size identical divided according to frequency domain are divided into four time-frequency regions of size identical according to time domain and frequency domain, the corresponding control channel composition member's numberings of at least one RE in one time-frequency region, there is the first corresponding relation between control channel composition member's numbering corresponding with the RE in other at least one time-frequency regions, including：If two time-frequency regions of the size identical divided according to frequency domain are being divided into four time-frequency regions of size identical according to time domain and frequency domain, between the corresponding control channel composition member's numberings of any RE in one time-frequency region, control channel composition member's numbering corresponding with the RE in another time-frequency region the first corresponding relation is set up according to the first rule.
    57th, the terminal according to claim 56, it is characterised in that the Physical Resource Block is to including f subcarrier, the f is even number, if two time-frequency regions of size identical divided according to frequency domain, first rule includes：In a time-frequency region and positioned at the physics in described two time-frequency regions There is first corresponding relation between control channel composition member's numbering corresponding to the corresponding RE of j-th of OFDM symbol on i-th of subcarrier of resource block pair, control channel composition member's numbering corresponding to RE corresponding with j-th of OFDM symbol in described two time-frequency regions in another time-frequency region and on the individual subcarriers of the i-th+f/2 in the Physical Resource Block；Or, the Physical Resource Block is to including f subcarrier, the f is the integer more than or equal to 2, if two time-frequency regions of size identical divided according to frequency domain, first rule includes：There is first corresponding relation between control channel composition member's numbering corresponding to the corresponding RE of j-th of OFDM symbol in described two time-frequency regions in a time-frequency region and on i-th of subcarrier in the Physical Resource Block pair, control channel composition member's numbering corresponding to RE corresponding with j-th of OFDM symbol in described two time-frequency regions in another time-frequency region and on the f-i subcarrier in the Physical Resource Block.
    58th, the terminal according to claim 56 or 57, it is characterized in that, the corresponding control channel composition member's numberings of any RE in a time-frequency region in described two time-frequency regions are k, the corresponding control channel composition member's numberings of a RE in another time-frequency region are η, and first corresponding relation includes：K+n=N-1, N is the number that the Physical Resource Block constitutes member to the control channel that can be sent, k value is the integer more than or equal to 0 and less than or equal to N-1, and n value is the integer more than or equal to 0 and less than or equal to N-1；Or, the corresponding control channel composition member's numberings of any RE in a time-frequency region in described two time-frequency regions are k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are n, and first corresponding relation includes：N=M0D (k+q, N), N is the number that the Physical Resource Block constitutes member to the control channel that can be sent, MOD is modulo operation, k value is the integer more than or equal to 0 and less than or equal to N-1, n value is the integer more than or equal to 0 and less than or equal to N-1, and q is the integer more than or equal to 0 and less than or equal to N-1；Or, the corresponding control channel composition member's numberings of any RE in a time-frequency region in described two time-frequency regions are k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are n, and first corresponding relation includes：If k is more than P-1, n=T-1-k;If k is less than or equal to P-1, then n=P-1-k, T is the subcarrier number that the Physical Resource Block is internally included, P=N/2, k value is the integer more than or equal to 0 and less than or equal to N-1, n value is the integer more than or equal to 0 and less than or equal to N-1, and N is the number that the Physical Resource Block constitutes member to the control channel that can be sent, and N is even number.
    59th, the terminal according to claim 58, it is characterised in that if described two time-frequency regions of size identical according to temporal partitioning or when being divided into size identical four according to time domain and frequency domain There is the second corresponding relation between the corresponding control channel composition member's numberings of at least one RE in frequency domain, a time-frequency region, control channel composition member's numbering corresponding with the RE in other at least one time-frequency regions, including：If according to temporal partitioning two time-frequency regions of size identical or be divided into four time-frequency regions of size identical according to time domain and frequency domain, between the corresponding control channel composition member's numberings of any RE in one time-frequency region, control channel composition member's numbering corresponding with the RE in another time-frequency region the second corresponding relation is set up according to Second Rule.
    60th, the terminal according to claim 59, characterized in that, the Physical Resource Block to there is g OFDM symbol on one sub-carrier, the g is even number, if according in two time-frequency regions of size identical of temporal partitioning, the Second Rule includes：There is second corresponding relation between control channel composition member's numbering corresponding to the corresponding RE of j-th of OFDM symbol in described two time-frequency regions in a time-frequency region and on i-th of subcarrier in the Physical Resource Block pair, control channel composition member's numbering corresponding to RE corresponding with+g/2 OFDM symbols of jth in described two time-frequency regions in another time-frequency region and on i-th of subcarrier in the Physical Resource Block；Or, the Physical Resource Block to there is g OFDM symbol on one sub-carrier, and the g is even number, if according in two time-frequency regions of size identical of temporal partitioning, the Second Rule includes：There is second corresponding relation between control channel composition member's numbering corresponding to the corresponding RE of j-th of OFDM symbol in described two time-frequency regions in a time-frequency region and on i-th subcarrier in the Physical Resource Block pair, control channel composition member's numbering corresponding to RE corresponding with the g-j OFDM symbol in described two time-frequency regions in another time-frequency region and on i-th subcarrier in the Physical Resource Block.
    61st, the terminal according to claim 59 or 60, it is characterized in that, the corresponding control channel composition member's numberings of any RE in a time-frequency region in described two time-frequency regions are k, the corresponding control channels of a RE in another time-frequency region constitute member's numbering n, and second corresponding relation is：K+n=N-1, N is the number that the Physical Resource Block constitutes member to the control channel that can be sent, k value is the integer more than or equal to 0 and less than or equal to N-1, and n value is the integer more than or equal to 0 and less than or equal to N-1；Or, the corresponding control channel composition member's numberings of any RE in a time-frequency region in described two time-frequency regions are k, the corresponding control channel composition member's numberings of a RE in another time-frequency region are n, and second corresponding relation includes：N=M0D (k+q, N), N are the number that the control channel that the Physical Resource Block is internally included constitutes member, and MOD is modulo operation, and k value is more than or equal to 0 and less than or equal to N-1 Integer, n value is the integer more than or equal to 0 and less than or equal to N-1, and q is the integer more than or equal to 0 and less than or equal to N-1；Or, the corresponding control channel composition member's numberings of any RE in a time-frequency region in described two time-frequency regions are k, and the corresponding control channel composition member's numberings of in another time-frequency region a RE are n, and second corresponding relation includes：If k is more than P-1, n=T-1-k;If k is less than or equal to P-1, n=P-1-k, T are the subcarrier number that the Physical Resource Block is internally included, and P=N/2, N is the number that the Physical Resource Block constitutes member to the control channel that can be sent, and N is even number.
    62nd, according to any one of claim 48-61 terminal, it is characterised in that the control channel composition member includes the corresponding sets of resource units of enhancing channel controller eCCE or enhancing resource unit group eREG.
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