CN103891343B - The Physical Downlink Control Channel ePDCCH of enhancing sending method, base station and terminal - Google Patents

The Physical Downlink Control Channel ePDCCH of enhancing sending method, base station and terminal Download PDF

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CN103891343B
CN103891343B CN201280007796.2A CN201280007796A CN103891343B CN 103891343 B CN103891343 B CN 103891343B CN 201280007796 A CN201280007796 A CN 201280007796A CN 103891343 B CN103891343 B CN 103891343B
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time
frequency
control channel
region
numbering
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CN103891343A (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

The present embodiments relate to the Physical Downlink Control Channel ePDCCH of a kind of enhancing sending method, base station and terminal.The physical resource that one ePDCCH is mapped to includes at least one control channel composition member, one Physical Resource Block is to can be used in sending at least two control channels composition member, it is divided at least two regions, including RE correspond respectively at least two control channels composition member, at least two control channels composition member has different control channel composition member's numberings respectively, control channel composition member's numbering corresponding at least one RE in a region at least two regions, one-to-one relationship be present between control channel composition member's numbering corresponding with the RE in other at least one regions at least two regions；Base station determines control channel composition member corresponding RE in Physical Resource Block；Base station forms member corresponding RE in Physical Resource Block by control channel and sends the control information that control channel forms member's carrying.

Description

The Physical Downlink Control Channel ePDCCH of enhancing sending method, base station and terminal
Technical field
The present embodiments relate to communication technical field, the Physical Downlink Control Channel ePDCCH of more particularly to a kind of enhancing Sending method, base station and terminal.
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）The expense of symbol, such as：Public reference signal（Common Reference Signal, CRS）, Channel state information reference signals（Channel-State Information Reference Signal, CSI-RS）Or demodulation Reference signal（Demodulation Reference Signal, DMRS）Equal distribution is uneven, therefore, causes after removing expense, Resource shared by the eCCE or eREG of various patterns（Resource Element, RE）Size it is unbalanced, it is various so as to cause ECCE the or eREG transmission performances of pattern are unbalanced.
The content of the invention
The embodiment of the present invention provides a kind of the Physical Downlink Control Channel ePDCCH of enhancing sending method, base station and end End, realize the RE shared by the control channel composition member of various patterns in balanced PRB pair, the Control Channel Group of balanced various patterns Into the transmission performance of member.
On the one hand, the embodiments of the invention provide a kind of Physical Downlink Control Channel ePDCCH of enhancing sending method, One ePDCCH includes at least one control channel composition member, and a Physical Resource Block is to can be used in sending at least two controls Channel forming member processed, the Physical Resource Block is to being divided at least two regions, and the Physical Resource Block is to included money Source unit RE corresponds respectively at least two control channels composition member, and at least two control channels composition member has respectively Member is formed by different control channels to number, corresponding at least one RE in a region at least two region Control channel composition member's numbering, control letter corresponding with the RE in other at least one regions at least two region One-to-one relationship be present between road forming member numbering；
Methods described includes：
Base station determines control channel composition member corresponding RE in the Physical Resource Block to be sent；
The base station forms member corresponding RE in the Physical Resource Block by the control channel to be sent and sent out Send the control channel composition member.
The embodiment of the present invention additionally provides a kind of Physical Downlink Control Channel ePDCCH of enhancing sending method, one EPDCCH includes at least one control channel composition member, and a Physical Resource Block is to can be used in sending at least two control letters Road forming member, the Physical Resource Block is to being divided at least two regions, and the Physical Resource Block is to included resource list First RE corresponds respectively at least two control channels composition member, and at least two control channels composition member has not respectively Same control channel composition member numbers, and is controlled corresponding at least one RE in a region at least two region Channel forming member numbers, Control Channel Group corresponding with the RE in other at least one regions at least two region One-to-one relationship be present between being numbered into member；
Methods described includes：
Terminal forms member corresponding RE in the Physical Resource Block by control channel and received described in the transmission of base station Control channel forms member, and the control channel composition member corresponding RE in the Physical Resource Block is true by the base station It is fixed；
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, and an ePDCCH includes at least one Control Channel Group Into member, a Physical Resource Block is to can be used in sending at least two control channels composition member, the Physical Resource Block pair At least two regions are divided into, the Physical Resource Block corresponds respectively at least two controls letter to included resource unit RE Road forming member, at least two control channels composition member have different control channel composition member's numberings, institute respectively State corresponding at least one RE in a region at least two regions control channel composition member's numbering, with it is described at least Exist between control channel composition member's numbering corresponding to the RE in other at least one regions in two regions and correspond 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 form member in the physical resource Corresponding RE sends the control channel composition member in block.
The embodiment of the present invention also provides a kind of terminal, and an ePDCCH includes at least one control channel composition member, and one Individual Physical Resource Block is to can be used in sending at least two control channels composition member, and the Physical Resource Block is to being divided at least Two regions, the Physical Resource Block included resource unit RE is corresponded respectively at least two control channels composition into There is different control channel composition members to number respectively by member, at least two control channels composition member, and described at least two Control channel composition member's numbering corresponding at least one RE in a region in individual region, with least two region In other at least one regions in RE corresponding to control channel composition member numbering between one-to-one relationship be present；
The terminal includes：
Receiver, base station transmission is received for forming member corresponding RE in the Physical Resource Block by control channel Control channel composition member, the control channel form member in the Physical Resource Block corresponding RE by the base Stand determination；
Processor, the data for including to control channel composition member decode.
The Physical Downlink Control Channel ePDCCH of enhancing provided in an embodiment of the present invention sending method, base station and terminal. PRB pair can be divided at least two regions, and the RE that PRB pair includes, which corresponds respectively at least two, has the control of different numberings Channel forming member, control channel composition member's numbering corresponding to any RE at least two regions in a region, with it One-to-one relationship be present between control channel composition member's numbering corresponding to RE in his at least one region, so that base Stand uniformly the control channel including various numberings can form member corresponding to the control channel composition member determined on RE, realize The control channel composition member for removing pilot-frequency expense numbers RE included number equilibrium as far as possible, the control letter of balanced various patterns The transmission performance of road forming member.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the stream of the Physical Downlink Control Channel ePDCCH of enhancing provided by the invention sending method one embodiment Cheng Tu；
Fig. 2 is the pilot-frequency expense schematic diagram of normal cyclic prefix subframe；
Fig. 3 is that PRB pair is divided into showing for two time-frequency regions of size identical by base station provided by the invention according to frequency domain It is intended to；
Fig. 4 is that PRB pair is showing for two time-frequency regions of size identical according to temporal partitioning by base station provided by the invention It is intended to；
Fig. 5 is that PRB pair is four time-frequency areas of size identical according to time domain and temporal partitioning by base station provided by the invention The schematic diagram in domain；
Fig. 6 is another embodiment of the Physical Downlink Control Channel ePDCCH sending method of enhancing provided by the invention Flow chart；
Fig. 7 is the signal for the eCCE that all RE included in PRB pair are distributed to 4 kinds of numberings in base station provided by the invention Figure；
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 is the signal for the eREG that all RE included in PRB pair are distributed to 8 kinds of numberings in base station provided by the invention Figure；
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；
Figure 11 is the structural representation of base station one embodiment provided by the invention；
Figure 12 is the structural representation of terminal one embodiment provided by the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made Embodiment, belong 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 system and next generation communication System, such as global system for mobile communications（GSM, Global System for Mobile communications）, code division is more Location（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 division multiple access（FDMA, Frequency Division Multiple Addressing）System, just Hand over frequency division multiple access（OFDMA, Orthogonal Frequency-Division Multiple Access）System, single carrier FDMA（SC-FDMA）System, GPRS（GPRS, General Packet Radio Service）System is long Phase evolution（LTE, Long Term Evolution）System, and other such communication systems.
The base station being related in the application（For example, access point）Can refer in access network in the air on interface by one or Multiple sectors and the equipment of wireless terminal communications.Base station can be used for mutually being changed the air frame received and IP packets, make For 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）Or the base station in WCDMA（NodeB）, can also be drilling in LTE Enter type base station（NodeB or eNB or e-NodeB, evolutional Node B）, the application do not limit.
The terminal being related in the application, i.e. user equipment, can be that wireless terminal can also be catv terminal, wireless terminal The equipment for providing a user voice and/or data connectivity can be referred to, there is the portable equipment of wireless connecting function or connect It is connected to other processing equipments of 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 it is " honeycomb " phone）With the computer with mobile terminal, for example, it may be portable, pocket, hand-held, calculating Built in machine or vehicle-mounted mobile device, they exchange language and/or data with wireless access network.For example, personal communication industry Business（PCS, Personal Communication Service）Phone, wireless phone, Session initiation Protocol（SIP）Phone, nothing Line local loop（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, expression may have three kinds of passes System, for example, A and/or B, can be represented：Individualism A, while A and B be present, these three situations of individualism B.In addition, herein Middle character "/", it is a kind of relation of "or" to typically represent forward-backward correlation object.
Fig. 1 is the stream of the Physical Downlink Control Channel ePDCCH of enhancing provided by the invention sending method one embodiment Cheng Tu, as shown in figure 1, the physical resources that are mapped to of an ePDCCH include at least one control channel composition member, one Physical Resource Block is to can be used in sending at least two control channels composition member, and Physical Resource Block is to being divided at least twoth area Domain, Physical Resource Block included resource unit RE is corresponded respectively at least two control channels composition member, at least two There is control channel composition member different control channel composition members to number respectively, in a region at least two regions At least one RE corresponding to control channel composition member numbering, in other at least one regions at least two regions One-to-one relationship be present between control channel composition member's numbering corresponding to RE.
This method includes：
S101, base station determine control channel composition member corresponding RE in the Physical Resource Block.
S102, base station form member corresponding RE in the Physical Resource Block by the control channel and send the control The control information of channel forming member carrying processed.
Optionally, control channel composition member can include sets of resource units or eREG corresponding to eCCE.
Base station sends control channel composition member, can use the ePDCCH or distributed ePDCCH of centralization.For Centralized ePDCCH, base station can send eCCE at least one PRB pair on RE, the eCCE of transmission concentrates on one or 2 In PRB pair；For distributed ePDCCH, base station can send eREG at least one PRB pair on RE, and the eREG of transmission disperses In multiple PRB pairs.
In Fig. 2, a normal CP is given（Cyclic Prefix, cyclic prefix）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 symbol, normal CP subframe share 14 OFDM symbols.As shown in Fig. 2 wherein the 0-6 OFDM symbol belongs to One time slot；The 7-13 OFDM symbol belongs to second time slot.On frequency domain, a RB pair includes 12 on frequency domain Subcarrier, 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 Referred to as resource element（Resource Element, RE）, if the 0th subcarrier of the 0th OFDM symbol in Fig. 2 is exactly one RE.In actually sending, the RB that resource physically uses 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 expression J-th of OFDM symbol（j=0-13）.J-th of RE of the i-th row in PRB pair is j-th in PRB pair on i-th of subcarrier RE corresponding to OFDM symbol.
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 Symbol, each column include 12 subcarriers.A grid in Fig. 2 represents a RE.From figure 2 it can be seen that for CRS, such as PRB pair is divided into the equal two parts up and down of line number by fruit, then upper part is mapped to a certain RE CRS numbering and in lower part The numbering for the CRS that the RE of correspondence position is mapped is identical.Such as：The CRS that the RE of the row the 0th of upper part the 2nd row is mapped, which is numbered, is 0, the CRS numberings that the RE that lower part correspondence position eighth row the 0th arranges is mapped also are 0, i.e. with i-th of subcarrier of a line and i-th+ The CRS numberings of 6 subcarriers are identical.
It is similar, for CSI-RS, in no DMRS row, such as：0-4 is arranged and 7-11 row, if PRB pressed Be divided into two time-frequency regions of size identical according to frequency domain, then the CSI-RS that RE is mapped in the time-frequency region of upper part with The pattern for the CSI-RS that the RE of part correspondence position is mapped is identical.That is, for the RE of same row, if the time-frequency area of upper part The RE of the i-th row is mapped as a CSI-RS pattern in domain, then the RE of the i-th+6 row equally reflects in the time-frequency region of same column lower middle portion Penetrate as the CSI-RS patterns.Such as：The RE of 0th row the 9th row is mapped as the port of CSI-RS pattern two, then the row the 9th of 0+6=6 The RE of row is equally mapped as the port of CSI-RS pattern two.
In the row with DMRS, such as：5-6 is arranged and 12-13 row, CSI-RS patterns meet specular up and down Property.That is, for the RE of same row, if the RE of the i-th row (i is since 0) is mapped as a CSI- in the time-frequency region of upper part RS patterns, then the RE of 11-i rows is equally mapped as the CSI-RS patterns in the time-frequency region of same column lower middle portion.Such as：Top The RE of the 2nd row the 5th row is divided to be mapped as the port of CSI-RS patterns 1, the RE of the row the 5th of lower part the 9th row is equally mapped as CSI-RS The port of pattern 1.
Due to needing some RE being configured to DMRS in each PRB pair, ePDCCH transmission is cannot be used on DMAS.In addition, During actual transmissions, it is also necessary to some RE are mapped as into the pilot tones such as CRS or CSI-RS, and ePDCCH can not be used in these pilot tones Transmission.
Accordingly, in the embodiment of the present invention, PRB pair can be divided at least two regions, optionally, at least one PRB pair In each PRB pair be 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 Four time-frequency regions of size identical can also be divided into according to time domain and frequency domain.It is understood that PRB pair can also divide It is numerous to list herein for the time-frequency region of other quantity.
It should be noted that Fig. 3-Fig. 5 is only several feasible implement scenes, PRB pair can be symmetrically divided at least Two regions, it can also asymmetrically be divided at least two regions.For example, the serial number of the OFDM symbol in PRB pair Odd number can be divided into a time-frequency region, when can be divided into one of serial number even number of the OFDM symbol in PRB pair Frequency domain；Or the serial number odd number of the subcarrier in PRB pair can be divided into a time-frequency region, son load in PRB pair The serial number even number of ripple can be divided into a time-frequency region.
By the CRS that the RE in different zones is mapped, there is certain corresponding relation between the pilot-frequency expense such as CSI-RS, Accordingly, the RE that PRB pair is included can be respectively corresponding to the few two control letters with different control channels composition member's numbering Road forming member, control channel composition member's numbering corresponding at least one RE in a region at least two regions, One-to-one relationship be present between control channel composition member's numbering corresponding with the RE in other at least one regions.So that Same CRS ports, or the RE shared by same CSI-RS patterns, can uniformly be mapped to various control channels compositions into On the control channel composition member of member's numbering, it is possible to achieve the control of the various numberings after the removal pilot-frequency expense such as CRS, CSI-RS The RE number that channel forming member processed is mapped is tried one's best balanced.
As a kind of feasible embodiment, if according to frequency domain division two time-frequency regions of size identical or according to when Domain and frequency domain are divided into four time-frequency regions of size identical, control channel corresponding at least one RE in a time-frequency region Forming member numbers, and can be deposited between control channel composition member's numbering corresponding with the RE in other at least one time-frequency regions In the first corresponding relation.
Optionally, under the implement scene, if according to frequency domain division two time-frequency regions of size identical or by Four time-frequency regions of size identical are divided into according to time domain and frequency domain, control channel corresponding to any RE in a time-frequency region Forming member numbers, can be according to the first rule between control channel composition member's numbering corresponding with the RE in another time-frequency region Then establish the first corresponding relation.
Under a kind of implement scene, Physical Resource Block is to including f subcarrier, f is even number, if according to frequency domain division Two time-frequency regions of size identical, the first rule can include：In a time-frequency region and it is located in two time-frequency regions Control channel composition member corresponding to j-th of OFDM symbol on i-th of subcarrier of Physical Resource Block centering corresponding to RE compiles Number, with j-th 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 The first corresponding relation be present between control channel composition member's numbering corresponding to RE corresponding to OFDM symbol；
Under another implement scene, Physical Resource Block is to including f subcarrier, f is the integer more than or equal to 2, such as Two time-frequency regions of size identical that fruit divides according to frequency domain, the first rule can also include：One in two time-frequency regions Corresponding to RE corresponding to j-th of OFDM symbol in individual time-frequency region and on i-th of subcarrier of Physical Resource Block centering Control channel composition member's numbering, with two time-frequency regions in another time-frequency region and in the Physical Resource Block f- The first correspondence be present between control channel composition member's numbering on i subcarrier corresponding to j-th of OFDM symbol corresponding to RE Relation.
Optionally, control channel corresponding to any RE in a time-frequency region in two time-frequency regions forms member Numbering is k, and control channel composition member's numbering is n corresponding in another time-frequency region a RE, and the first corresponding relation can be with Including：K+n=N-1, N are the number that Physical Resource Block forms member to the control channel that can send, k value to be more than or Integer 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；Or Person,
Control channel composition member's numbering is corresponding to any RE in a time-frequency region in two time-frequency regions K, control channel composition member's numbering is n corresponding to a RE in another time-frequency region, and the first corresponding relation can include：n= MOD（K+q, N）, N is the number that Physical Resource Block forms member to the control channel that can be sent, and MOD is modulo operation, k's Value is the integer more than or equal to 0 and less than or equal to N-1, and n value is more than or equal to 0 and is less than or equal to N- 1 integer, q are the integer more than or equal to 0 and less than or equal to N-1；Or
Control channel composition member's numbering is corresponding to any RE in a time-frequency region in two time-frequency regions K, control channel composition member's numbering is n corresponding to a RE in another time-frequency region, 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, n=P-1-k, T are the subcarrier that Physical Resource Block internally includes Number, P=N/2, k value are the integer more than or equal to 0 and less than or equal to N-1, and n value is more than or equal to 0 simultaneously And the integer less than or equal to N-1, N are the number that Physical Resource Block forms member to the control channel that can be sent, N is even Number.
As another feasible embodiment, if according to frequency domain division two time-frequency regions of size identical or according to Time domain and frequency domain are divided into four time-frequency regions of size identical, control letter corresponding at least one RE in a time-frequency region Road forming member numbers, can be between corresponding with the RE in other at least one time-frequency regions control channel composition member's numbering In the presence of the second corresponding relation.
Optionally, if according to two time-frequency regions of size identical of temporal partitioning or according to time domain and frequency domain division For four time-frequency regions of size identical, control channel composition member's numbering corresponding to any RE in a time-frequency region, with Between control channel composition member's numbering corresponding to RE in another time-frequency region the second corresponding relation is established according to Second Rule.
Under a kind of implement scene, for Physical Resource Block to there is g OFDM symbol on one sub-carrier, g is even number, if According in two time-frequency regions of size identical of temporal partitioning, Second Rule can include：One in two time-frequency regions Control corresponding to j-th of OFDM symbol in time-frequency region and on i-th of subcarrier of Physical Resource Block centering corresponding to RE Channel forming member processed numbering, with two time-frequency regions in another time-frequency region and positioned at i-th in Physical Resource Block There is second pair between control channel composition member's numbering corresponding to+g/2 OFDM symbols of jth on subcarrier corresponding to RE It should be related to；
Under another implement scene, Physical Resource Block to there is g OFDM symbol on one sub-carrier, and g is even number, such as According in two time-frequency regions of size identical of temporal partitioning, Second Rule can include fruit：One in two time-frequency regions Corresponding to RE corresponding to j-th of OFDM symbol in individual time-frequency region and on i-th of subcarrier of Physical Resource Block centering Control channel composition member's numbering, with two time-frequency regions in another time-frequency region and i-th in the Physical Resource Block There is second pair between control channel composition member's numbering corresponding to the g-j OFDM symbol on individual subcarrier corresponding to RE It should be related to.
Optionally, control channel corresponding to any RE in a time-frequency region in two time-frequency regions forms member Numbering is k, and control channel corresponding in another time-frequency region a RE forms member's numbering n, and the second corresponding relation can be： K+n=N-1, N are the number that Physical Resource Block forms member to the control channel that can be sent, and k value is more than or equal to 0 And the integer 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；Or
Control channel composition member's numbering is corresponding to any RE in a time-frequency region in two time-frequency regions K, control channel composition member's numbering is n corresponding to a RE in another time-frequency region, and the second corresponding relation can be：n= MOD（K+q, N）, N is the number that the control channel that Physical Resource Block internally includes forms member, and MOD is modulo operation, and k's takes It is worth for the integer more than or equal to 0 and less than or equal to N-1, n value is more than or equal to 0 and is less than or equal to N-1 Integer, q be more than or equal to 0 and less than or equal to N-1 integer；Or
Control channel composition member's numbering is corresponding to any RE in a time-frequency region in two time-frequency regions K, control channel composition member's numbering is n corresponding to a RE in another time-frequency region, and the second corresponding relation is：If k is more than Or equal to P-1, then n=T-1-k；If k is less than P-1, n=P-1-k, T are the subcarrier number that Physical Resource Block internally includes, P= N/2, N are the number that Physical Resource Block forms member to the control channel that can be sent, and N is even number.
Optionally, the two control channels composition member's numbering that one-to-one relationship be present can differ, so as to enter one Step enables the RE uniform mappings in each region to form member to the control channel of different control channels composition member's numbering On.
Optionally, exist at least one in two RE corresponding to control channel composition member's numbering of one-to-one relationship It can be the RE for not carrying demodulated reference signal DMRS, so that removing CRS and CSI-RS pilot-frequency expenses, and remove DMRS Expense RE can be uniformly mapped on the control channel composition member of various numberings.
Optionally, the RE at least one subcarrier that any one region at least two regions is included can be corresponded to Member is formed at least two control channels.Wherein, each subcarrier that any one region at least two regions is included On RE can correspond at least two control channels composition member.
Or at least two region at least one orthogonal frequency division multiplex OFDM symbol for being included of any one region on RE can correspond at least two control channels composition member.Wherein, any one region at least two regions is included Each orthogonal frequency division multiplex OFDM symbol on RE can correspond at least two control channels composition member.
The Physical Downlink Control Channel ePDCCH for the enhancing that the present embodiment provides sending method, PRB pair can be divided into 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, extremely Control channel composition member's numbering corresponding to any RE in few two regions in a region, in other at least one regions RE corresponding to control channel composition member numbering between one-to-one relationship be present so that base station determine control channel Corresponding to forming member uniformly the control channel composition member including various numberings, realization the control of pilot-frequency expense can be removed on RE Channel forming member processed numbers RE included number equilibrium as far as possible, the transmission of the control channel composition member of balanced various patterns Performance.
Fig. 6 is another embodiment of the Physical Downlink Control Channel ePDCCH sending method of enhancing provided by the invention Flow chart, as shown in fig. 6, the physical resources that are mapped to of an ePDCCH include at least one control channel composition member, one Individual Physical Resource Block is to can be used in sending at least two control channels composition member, and Physical Resource Block is to being divided at least two Region, Physical Resource Block included resource unit RE is corresponded respectively at least two control channels composition member, at least two There is individual control channel composition member different control channel composition members to number respectively, a region at least two regions Control channel composition member's numbering corresponding to interior at least one RE, in other at least one regions at least two regions RE corresponding to control channel composition member numbering between one-to-one relationship be present；
Method includes：
S601, terminal form member corresponding RE in Physical Resource Block by control channel and receive the control that base station is sent Channel forming member, control channel composition member corresponding RE in Physical Resource Block are determined by base station.
S602, the control information carried to control channel composition member parse.
Wherein, at least one RE in the region division mode in PRB pair, and a region at least two regions Corresponding control channel composition member's numbering, control corresponding with the RE in other at least one regions at least two regions One-to-one relationship be present between channel forming member numbering and for details, reference can be made to associated description in embodiment illustrated in fig. 1, herein Repeat no more.
Terminal can according to corresponding to aggregation level and aggregation level ePDCCH candidate collections number, one by one to candidate The RE of compound mapping is detected, and then the control information that member is carried can be formed to the control channel and is parsed. Wherein, the number of terminal ePDCCH candidate collections according to corresponding to aggregation level and aggregation level, reflects to candidate collection one by one The RE penetrated is detected, and the process for the control information that member is carried is formed as existing skill using the control channel for obtaining base station transmission Art, it will not be repeated here.
The Physical Downlink Control Channel ePDCCH for the enhancing that the present embodiment provides sending method, PRB pair can be divided into 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, extremely Control channel composition member's numbering corresponding to any RE in few two regions in a region, in other at least one regions RE corresponding to control channel composition member numbering between one-to-one relationship be present so that terminal receive control channel Corresponding to forming member uniformly the control channel composition member including various numberings, realization the control of pilot-frequency expense can be removed on RE Channel forming member processed numbers RE included number equilibrium as far as possible, the transmission of the control channel composition member of balanced various patterns Performance.
Control channel composition member presented below is sets of resource units corresponding to eCCE, the RE difference included by PRB pair Exemplified by there is sets of resource units corresponding to the eCCE of different numberings corresponding to four, the transmission to ePDCCH provided by the invention Method illustrates.
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- is compiled Numbers 3）ECCE corresponding to sets of resource units, eCCE mapped on all RE in whole PRB pair.Need what is illustrated It is that sets of resource units numbering can also be other numbers corresponding to the eCCE included in PRB pair, such as：2.
PRB pair can be divided into two time-frequency regions of size identical by referring also to Fig. 3, base station according to frequency domain, herein Referred to as first area and second area, first area and second area include the RE of same sub-carrier and identical OFDM symbol, Sets of resource units numbering is corresponding with the RE of same column in second area corresponding to eCCE corresponding to a RE in first area Corresponding to eCCE there is the first corresponding relation in sets of resource units numbering.
PRB pair includes f subcarrier, and f is even number, and in the present embodiment, f can be equal to 12, if according to frequency domain division In two time-frequency regions of size identical, j-th in a time-frequency region and on i-th of subcarrier in PRB pair Control channel composition member's numbering corresponding to RE corresponding to OFDM symbol, and in another time-frequency region and i-th in the PRB +6（That is, the i-th+f/2）Control channel composition member corresponding to j-th of OFDM symbol on individual subcarrier corresponding to RE numbers it Between the first corresponding relation be present.
That is, corresponding to RE corresponding to j-th of OFDM symbol in first area and on i-th of subcarrier in PRB pair ECCE corresponding to sets of resource units numbering, with j-th in second area and in the PRB on the i-th+6 subcarriers The first corresponding relation be present between sets of resource units numbering corresponding to eCCE corresponding to RE corresponding to OFDM symbol.It can manage Solution, second area is interior and is located at corresponding to RE corresponding to j-th of OFDM symbol in PRB pair on i-th of subcarrier Sets of resource units corresponding to eCCE is numbered, with j-th of OFDM symbol pair in PRB in first area on the i-th -6 subcarriers The first corresponding relation be present between sets of resource units numbering corresponding to the eCCE corresponding to RE answered.
In the present embodiment, sets of resource units numbering is k corresponding to eCCE corresponding to any RE in first area, second Sets of resource units numbering n corresponding to eCCE corresponding to a RE in region, the first corresponding relation can be：K+n=N-1, N The number of sets of resource units corresponding to the eCCE that can be sent for PRB pair, k value be more than or equal to 0 and be less than or Integer equal to N-1, n value is the integer more than or equal to 0 and less than or equal to N-1.
Under the implement scene, all RE that base station first can include for first area distribute resource unit corresponding to eCCE Set number, such as：Numbering can be sequentially allocated on each RE in the way of time domain after frequency domain after first time domain or first frequency domain For sets of resource units corresponding to 0-3 eCCE, sets of resource units corresponding to the RE distribution eCCE in first area numbers it Afterwards, base station can be that the RE in second area distributes sets of resource units volume corresponding to eCCE according to k+n=N-1 corresponding relation Number.It is understood that all RE that base station first can also include for second area distribute sets of resource units corresponding to eCCE Numbering, such as：It is 0-3 that numbering, which can be sequentially allocated, on each RE in the way of time domain after frequency domain after first time domain or first frequency domain ECCE corresponding to sets of resource units, after sets of resource units numbering corresponding to the RE distribution eCCE in second area, base Standing can be that the RE in first area distributes sets of resource units numbering corresponding to eCCE according to k+n=N-1 corresponding relation.
Similar, as another feasible embodiment, referring also to Fig. 4, base station can draw PRB pair according to time domain It is divided into two time-frequency regions of size identical, hereon referred to as wrapped in first area and second area, first area and second area Include the RE of same sub-carrier and identical OFDM symbol, sets of resource units corresponding to eCCE corresponding to a RE in first area Corresponding to numbering eCCE corresponding with the RE to be gone together in second area there is the second corresponding relation in sets of resource units numbering.
For PRB blocks to that can have g OFDM symbol on one sub-carrier, g is even number, and in the present embodiment, g can be equal to 14, if according in two time-frequency regions of size identical of temporal partitioning, the in a time-frequency region and in PRB pair Sets of resource units corresponding to eCCE corresponding to j-th of OFDM symbol on i subcarrier corresponding to RE is numbered, with another Jth+7 in time-frequency region and on i-th of subcarrier in PRB（That is jth+g/2）Corresponding to RE corresponding to individual OFDM symbol ECCE corresponding to sets of resource units numbering between the second corresponding relation be present.
That is, corresponding to RE corresponding to j-th of OFDM symbol in first area and on i-th of subcarrier in PRB pair ECCE corresponding to sets of resource units numbering, with+7 OFDM symbols of jth in PRB in second area on i-th of subcarrier The second corresponding relation be present between sets of resource units numbering corresponding to eCCE corresponding to corresponding RE.It is understood that Corresponding to eCCE corresponding to j-th of OFDM symbol in second area and on i-th of subcarrier in PRB pair corresponding to RE Sets of resource units is numbered, corresponding with -7 OFDM symbols of jth in first area and on i-th of subcarrier in PRB The second corresponding relation be present between sets of resource units numbering corresponding to eCCE corresponding to RE.
In the present embodiment, sets of resource units numbering is k corresponding to RE eCCE in first area, in second area RE eCCE corresponding to sets of resource units numbering n, the second corresponding relation can be：K+n=N-1, wherein, N is PRB pair energy The number of sets of resource units corresponding to the eCCE enough sent, k value is more than or equal to 0 and less than or equal to N-1's Integer, 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 gives Go out under the PRB pair RE methods of salary distribution shown in Fig. 7, different pilot frequency ports, the number of the shared RE in a PRB pair Mesh.As can be seen that to different CRS, different configurations, CRS's in sets of resource units corresponding to the eCCE of every kind of numbering Number is balanced, and the number of the CSI-RS in sets of resource units corresponding to the eCCE of every kind of numbering is balanced.
As another feasible embodiment, referring also to Fig. 5, base station can also be by PRB pair according to time domain and frequency domain It is divided into four time-frequency regions of size identical.Wherein, it is divided into according to frequency domain in two time-frequency regions of size identical, one Sets of resource units corresponding to eCCE is numbered corresponding at least one RE in time-frequency region, with RE pairs in another time-frequency region The first corresponding relation be present between sets of resource units numbering corresponding to the eCCE answered；It is size identical two according to temporal partitioning In individual time-frequency region, sets of resource units corresponding to eCCE is numbered corresponding at least one RE in a time-frequency region, and another The second corresponding relation be present between sets of resource units numbering corresponding to eCCE corresponding to RE in one time-frequency region.Wherein, The associated description of one corresponding relation and the second corresponding relation can be found in the associated description in Fig. 1 and embodiment illustrated in fig. 7, herein not Repeat again.
Control channel composition member presented below is eREG, and the RE included by PRB pair, which corresponds respectively to eight, has difference Exemplified by the eREG of numbering, ePDCCH provided by the 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- is compiled Numbers 7）EREG, eREG mapped on all RE in whole PRB pair.It should be noted that include in PRB pair EREG numberings can also be other numbers, such as：16.
Each PRB pair can be divided into two time-frequency regions of size identical by referring also to Fig. 3, base station according to frequency domain, Referred to here as the 3rd region and the 4th region, the 3rd region and the 4th region include same sub-carrier and identical OFDM symbol RE, eREG corresponding to a RE in the 3rd region number eREG numberings corresponding with the RE of same column in the 4th region in the presence of first Corresponding relation.
Under a kind of implement scene, Physical Resource Block is to including f subcarrier, f is even number, if according to frequency domain division In two time-frequency regions of size identical, j-th of OFDM in a time-frequency region and on i-th of subcarrier in PRB pair Control channel composition member's numbering corresponding to RE corresponding to symbol, and in another time-frequency region and i-th+6 in the PRB （That is the i-th+f/2）Between control channel composition member's numbering corresponding to j-th of OFDM symbol on individual subcarrier corresponding to RE In the presence of the first corresponding relation.
That is, corresponding to RE corresponding to j-th of OFDM symbol in the 3rd region and on i-th of subcarrier in PRB pair EREG numberings, RE institutes corresponding with j-th of OFDM symbol in the 4th region and in the PRB on the i-th+6 subcarriers are right The first corresponding relation be present between the eREG numberings answered.It is understood that in the 4th region and positioned at i-th of son in PRB pair EREG numberings corresponding to j-th of OFDM symbol on carrier wave corresponding to RE, and in the 3rd region and the i-th -6 in the PRB The first corresponding relation be present between eREG numberings corresponding to j-th of OFDM symbol on subcarrier corresponding to RE.
In the present embodiment, eREG numberings are k corresponding to any RE in the 3rd region（Row where the RE do not include demodulation Reference signal DMRS）, RE eREG numbering n, the first corresponding relation can be in the 4th region：n=MOD（K+q, N）, wherein, N For the eREG included in PRB pair number（N takes 8 in the present embodiment）, MOD is modulo operation, and k value is more than or equal to 0 And the integer less than or equal to N-1, n value are the integer more than or equal to 0 and less than or equal to N-1, q to be more than or Integer equal to 0 and less than or equal to N-1（For example, q can take 4）.
Being arranged for 0-4 for DMRS, and 7-11 row are not included in PRB pair.Assuming that in same row, in the 3rd region RE eREG numbering is k, and the eREG of the RE in the 4th region numbering is n, then n=MOD (k+q, N).MOD represents modulus fortune Calculate, MOD (a, b) represents the computing to a modulus b.Assuming that making i represent row, j represents row, then if the i-th row j dependents of dead military hero in PRB pair Some RE in the 3rd region, and this RE eREG numbering k, then belong in PRB pair the i-th+6 row jth dependent of dead military hero in the 4th region RE eREG numbering n=MOD (k+q, N).When q takes 4, it can be deduced that, the i-th row j dependent of dead military hero are in the RE in the 3rd region The corresponding relation of eREG numberings k and the i-th+6 row jth dependent of dead military hero between four-range RE eREG numberings n can be：
0<--------->4,1<--------->5,2<--------->6,3<--------->7.
Optionally, under another implement scene, PRB pair includes f subcarrier, and f is the integer more than or equal to 2, and f can Equal to 11, in two time-frequency regions of size identical according to frequency domain division, in a time-frequency region and to be located in PRB pair Control channel composition member's numbering corresponding to the RE corresponding to j-th of OFDM symbol on i-th of subcarrier, during with another 11-i in PRB in frequency domain（That is f-i）Control channel corresponding to j-th of OFDM symbol on individual subcarrier corresponding to RE The first corresponding relation be present between forming member's numbering.
That is, corresponding to RE corresponding to the 3rd region and j-th of OFDM symbol on i-th of subcarrier in PRB pair EREG is numbered, corresponding to the corresponding RE of j-th of OFDM symbols in the 4th region and on the 11-i subcarrier in PRB The first corresponding relation be present between eREG numberings.
EREG numberings are k corresponding to any RE in 3rd region（Row where the RE include demodulated reference signal DMRS）, RE eREG numbering n, the first corresponding relation can be in the 4th region：n=MOD（K+q, N）, wherein, N is in PRB pair Comprising eREG number（N takes 8 in the present embodiment）, MOD is modulo operation, k value be more than or equal to 0 and be less than or Integer equal to N-1, n value are the integer more than or equal to 0 and less than or equal to N-1, q be more than or equal to 0 and Integer less than or equal to N-1（For example, q can take 4）.
PRB pair includes DMRS and is classified as 5-6 row, and 12-13 row, in same row in the 3rd region and the 4th region RE in, 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）.
As another feasible embodiment, referring also to Fig. 4, base station can also be by each PRB pair to according to time domain It is divided into two time-frequency regions of size identical, hereon referred to as the 3rd region and the 4th region, in the 3rd region and the 4th region RE including same sub-carrier and identical OFDM symbol, eREG numberings corresponding to a RE in the 3rd region with the 4th region Corresponding to the RE of colleague there is the second corresponding relation of setting in eREG numberings.
In the present embodiment, eREG numberings are k corresponding to any RE in the 3rd region, with one RE pairs in the 4th region The eREG numberings n answered, the second corresponding relation are：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 are 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 to be gone together in the 4th region EREG numberings 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, N=8, P=N/2=4.
As another feasible embodiment, referring also to Fig. 5, base station can also be by PRB pair according to time domain and frequency domain It is divided into four time-frequency regions of size identical.Wherein, it is divided into according to frequency domain in two time-frequency regions of size identical, one EREG corresponding at least one RE in time-frequency region is numbered, and is deposited between eREG numberings corresponding with the RE in another time-frequency region In the first corresponding relation；It is in two time-frequency regions of size identical at least one in a time-frequency region according to temporal partitioning EREG corresponding to individual RE is numbered, and the second corresponding relation be present between eREG numberings corresponding with the RE in another time-frequency region.Its In, 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. 9, It will not be repeated here.
Based on above-mentioned first corresponding relation and the second corresponding relation, during RE distribution eREG numberings in for PRB pair, as long as Know the eREG numberings of the RE in any time-frequency region, it can obtain the eREG numberings of the RE in other 3 time-frequency regions.Example Such as：In any one time-frequency region, it is only necessary to meet to take certain reference signal（Reference Signal,RS）, such as： CRS, CSI RS etc. each RE eREG numberings are belonging respectively to the eREG of both above numbering, the individual base of every kind of numbering This is identical.
Assuming that the corresponding relation that RE eREG is numbered in above-mentioned two time-frequency regions according to frequency domain division is k=MOD（n+ Q, N）, then the following corresponding relation that can be numbered：
0<--------->4,3<--------->7,1<--------->5,2<--------->6
Assuming that it is z=IF (x according to the eREG of RE in two time-frequency regions of the temporal partitioning corresponding relations numbered>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, it is classified as first group of volume Number, according to first group of corresponding relation 0<--------->4,3<--------->7, obtain two other numbering corresponding with 0,3 For 4,7, 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 second group of volume Number.By first, second and third and four region whole PRB pair is divided into 4 regions, referring to Fig. 5.
Numbering on all RE of PRB pair belongs to above-mentioned two group #, and the RE number with the first group # and The RE number with the second group # is identical.
For example：PRB pair is divided into the reality of equal-sized four time-frequency regions in base station according to time domain and frequency domain Apply under scene, 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's EREG numberings are followed successively by 1,2,4 and 7；Columns is 5 to 6 RE, and according to the order of Row Column, each RE eREG numberings are followed successively by 1st, 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, and according to the order of Column Row, each RE eREG numberings are followed successively by 5th, 6,0 and 3；Columns is 5 to 6 RE, and according to the order of Row Column, 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, and according to the order of Column Row, each RE eREG numberings are successively For 2,1,7 and 4；Columns is 12 to 13 RE, and according to the order of Row Column, 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, and according to the order of Column Row, each RE eREG numberings are successively For 6,5,3 and 0；Columns is 12 to 13 RE, and according to the order of Row Column, 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 Under different CRS in Fig. 9, CSI-RS configuration, the number of pilots shared by the eREG of difference numbering.As can be seen that different pilot tone Configuration, the number of pilots shared by the eREG of every kind of numbering are identical.
It should be noted that in all embodiments more than, the control channel composition member of the RE between two regions The corresponding relation of numbering can include：
Control channel composition member's numbering is k corresponding to any RE in one time-frequency region, in another time-frequency region Control channel corresponding to one RE forms member's numbering n, and the first corresponding relation can be：K+n=N-1, N are Physical Resource Block pair The number for the control channel composition member that can be sent, 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；Or
Control channel composition member's numbering is k corresponding to any RE in one time-frequency region, in another time-frequency region A RE corresponding to control channel composition member's numbering n, the first corresponding relation can be：n=MOD（K+q, N）, N is physics money Source block forms the number of member to the control channel that can send, and MOD is modulo operation, k value be more than or equal to 0 and Integer less than or equal to N-1, n value are the integer more than or equal to 0 and less than or equal to N-1, q be more than or equal to 0 and less than or equal to N-1 integer；Or
Control channel composition member's numbering is k corresponding to any RE in one time-frequency region, in another time-frequency region A RE corresponding to control channel composition member's numbering n, 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, n=P-1-k, T are the subcarrier number that Physical Resource Block internally includes, and P=N/2, k value are Integer more than or equal to 0 and less than or equal to N-1, n value is more than or equal to 0 and whole less than or equal to N-1 Number, N are the number that Physical Resource Block forms 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 according to frequency Equal-sized two time-frequency regions of domain division.In the embodiment of region division more than, two regions can be divided into Lower two or the region of left and right two.Upper and lower two regions belong to the zoning on frequency domain, and the region of left and right two belongs in time domain Upper zoning.Further, zoning can account for 6 subcarriers according to each region on frequency domain, but be not that numbering is 0-5 subcarrier（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.Such as the symbol without DMRS（0-4 row in Fig. 5；7-11 is arranged）.In same row, or i-th of row（I=0 is arrived 5）There is corresponding relation with the RE of the i-th+6 row eCCE or eREG numbering.But a region is the 0th, 2,4,7,9,11 row；It is another Region is the 1st, 3,5,6,8,10 row.That is i-th of row（I=0 to 5）Different regions is belonging respectively to the i-th+6 row.
Similarly, when being divided according to frequency domain ,+7 OFDM symbols of the individual OFDM symbol of jth (j=0 to 6) and jth of same subcarrier Number RE have corresponding relation.Can also 0,2,4,6,8,10,12 OFDM symbols as first area；1,2,5,7,9,11,13 Individual OFDM symbol is as second area.As long as meet the individual OFDM symbol of jth (j=0 to 6) and jth+7 with subcarrier one by one OFDM symbol is in different regions.Moreover, the corresponding relation in region can continue to use the corresponding relation of above example, no longer Repeat.
On the basis of above-mentioned implementation, optionally, base station determines an eCCE to be sent corresponding RE in PRB pair, One eCCE corresponds to any two eREG；Or base station can determine that an eCCE to be sent is right in Physical Resource Block pair The RE answered, an eCCE correspond to any four eREG.Such as：Numbering is that the RE shared by 1 and 6 eREG forms an eCCE；Compile Number for 2 and 5 eREG shared by RE form an eCCE corresponding to sets of resource units；Shared by the eREG that mark numbering is 4 and 4 RE forms sets of resource units corresponding to an eCCE；Numbering is that the RE shared by 7 and 0 eREG forms money corresponding to an eCCE Source unit set.It so can equally ensure that the RE numbers corresponding to different eCCE shared by sets of resource units are identical.
Figure 11 is the structural representation of base station one embodiment provided by the invention, as shown in figure 11, an ePDCCH quilt The physical resource being mapped to includes at least one control channel composition member, and a Physical Resource Block is to can be used in sending at least Two control channels form member, and Physical Resource Block is to being divided at least two regions, and Physical Resource Block is to included resource Unit R E corresponds respectively at least two control channels composition member, and at least two control channels composition member has difference respectively Control channel composition member's numbering, Control Channel Group corresponding at least one RE in a region at least two regions Numbered into member, control channel composition member's numbering corresponding with the RE in other at least one regions at least two regions Between one-to-one relationship be present；
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, institute is sent for forming member corresponding RE in the Physical Resource Block by the control channel State the control information of control channel composition member's carrying.
Optionally, Physical Resource Block is to being divided at least two regions, including：At least one Physical Resource Block centering it is every Individual Physical Resource Block is to being divided at least two regions.
Optionally, the two control channels composition member's numbering that one-to-one relationship be present differs.
Optionally, the RE at least one subcarrier that any one region at least two regions is included corresponds to extremely Few two control channels composition member；Or, at least two region at least one orthogonal frequency for being included of any one region The RE being multiplexed in OFDM symbol corresponds at least two control channels composition member.
Optionally, the RE at least one subcarrier that any one region at least two regions is included corresponds to extremely Few two control channels composition member, including：On each subcarrier that any one region at least two regions is included RE corresponds 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 Member is formed corresponding at least two control channels, including：
RE on each orthogonal frequency division multiplex OFDM symbol that any one region at least two regions is included is corresponding Member is formed at least two control channels.
Optionally, exist at least one in two RE corresponding to control channel composition member's numbering of one-to-one relationship 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 being according to temporal partitioning 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, control channel composition member compiles corresponding at least one RE in a region at least two regions Number, exist between control channel composition member's numbering corresponding with the RE in other at least one regions at least two regions One-to-one relationship, including：
If it is divided into size phase according to two time-frequency regions of size identical of frequency domain division or according to time domain and frequency domain With four time-frequency regions, control channel composition member's numbering corresponding at least one RE in a time-frequency region, with other The first corresponding relation be present between control channel composition member's numbering corresponding to RE at least one time-frequency region；
If according to temporal partitioning two time-frequency regions of size identical or be divided into size according to time domain and frequency domain Four time-frequency regions of identical, control channel composition member's numbering corresponding at least one RE in a time-frequency region, with it The second corresponding relation be present between control channel composition member's numbering corresponding to RE in his at least one time-frequency region.
Optionally, if be divided into according to two time-frequency regions of size identical of frequency domain division or according to time domain and frequency domain Four time-frequency regions of size identical, control channel composition member's numbering corresponding at least one RE in a time-frequency region, The first corresponding relation be present between control channel composition member's numbering corresponding with the RE in other at least one time-frequency regions, wrap Include：
If according to frequency domain division two time-frequency regions of size identical or be divided into size according to time domain and frequency domain Four time-frequency regions of identical, control channel composition member's numbering corresponding to any RE in a time-frequency region, with it is another when Between control channel composition member's numbering corresponding to RE in frequency domain the first corresponding relation is established according to the first rule.
Optionally, Physical Resource Block is to including f subcarrier, f is even number, if the size identical divided according to frequency domain Two time-frequency regions, the first rule include：In two time-frequency regions in a time-frequency region and in Physical Resource Block pair Control channel composition member's numbering corresponding to j-th of OFDM symbol on i-th of subcarrier corresponding to RE, and in two time-frequencies 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 in region RE corresponding to control channel composition member numbering between the first corresponding relation be present；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 Including：J-th 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 to OFDM symbol, with another time-frequency region in two time-frequency regions Control Channel Group corresponding to interior and j-th of OFDM symbol in the Physical Resource Block on the f-i subcarrier corresponding to RE The first corresponding relation be present between being numbered into member.
Optionally, control channel corresponding to any RE in a time-frequency region in two time-frequency regions forms member Numbering is k, and control channel composition member's numbering is n corresponding in another time-frequency region a RE, and the first corresponding relation includes： K+n=N-1, N are the number that Physical Resource Block forms member to the control channel that can be sent, and k value is more than or equal to 0 And the integer 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；Or two Control channel composition member's numbering is k corresponding to any RE in a time-frequency region in individual time-frequency region, another time-frequency area Control channel composition member's numbering is n corresponding to a RE in domain, and the first corresponding relation includes：n=MOD（K+q, N）, N is thing Reason resource block forms the number of member to the control channel that can be sent, and MOD is modulo operation, and k value is more than or equal to 0 And the integer less than or equal to N-1, n value are the integer more than or equal to 0 and less than or equal to N-1, q to be more than or Integer equal to 0 and less than or equal to N-1；Or any RE pairs in a time-frequency region in two time-frequency regions The control channel composition member's numbering answered is k, control channel composition member's numbering corresponding in another time-frequency region a RE For n, 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, n=P-1-k, T are physics The subcarrier number that resource block internally includes, P=N/2, k value are 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 Physical Resource Block to the control channel that can send The number of forming member, N are even number.
Optionally, if according to two time-frequency regions of size identical of temporal partitioning or according to time domain and frequency domain division For four time-frequency regions of size identical, control channel composition member compiles corresponding at least one RE in a time-frequency region Number, with the RE in other at least one time-frequency regions corresponding to control channel composition member numbering between exist second it is corresponding pass System, including：If according to temporal partitioning two time-frequency regions of size identical or be divided into size according to time domain and frequency domain Four time-frequency regions of identical, control channel composition member's numbering corresponding to any RE in a time-frequency region, with it is another when Between control channel composition member's numbering corresponding to RE in frequency domain the second corresponding relation is established according to Second Rule.
Optionally, for Physical Resource Block to there is g OFDM symbol on one sub-carrier, g is even number, if drawn according to time domain In two time-frequency regions of the size identical being divided to, Second Rule includes：In a time-frequency region and position in two time-frequency regions Member is formed in the control channel corresponding to RE corresponding to j-th of OFDM symbol on i-th of subcarrier of Physical Resource Block centering Numbering, with the jth in two time-frequency regions in another time-frequency region and in the Physical Resource Block on i-th of subcarrier+ The second corresponding relation be present between control channel composition member's numbering corresponding to g/2 OFDM symbol corresponding to RE；Or thing Resource block is managed to there is g OFDM symbol on one sub-carrier, g is even number, if the size identical two according to temporal partitioning In individual time-frequency region, Second Rule includes：In two time-frequency regions in a time-frequency region and in Physical Resource Block pair Control channel composition member's numbering corresponding to j-th of OFDM symbol on i-th of subcarrier corresponding to RE, and in two time-frequencies Corresponding to the g-j OFDM symbol in region in another time-frequency region and on i-th of subcarrier in Physical Resource Block The second corresponding relation be present between control channel composition member's numbering corresponding to RE.
Optionally, control channel corresponding to any RE in a time-frequency region in two time-frequency regions forms member Numbering is k, and control channel corresponding in another time-frequency region a RE forms member's numbering n, and the second corresponding relation is：k+n= N-1, N are the number that Physical Resource Block forms member to the control channel that can send, k value be more than or equal to 0 and Integer 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；Or at two Control channel composition member's numbering is k corresponding to any RE in a time-frequency region in frequency domain, in another time-frequency region A RE corresponding to control channel composition member numbering be n, the second corresponding relation includes：n=MOD（K+q, N）, N is physics money The number for the control channel composition member that source block internally includes, MOD are modulo operation, and k value is more than or equal to 0 and small In 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 more than or equal to 0 And the integer less than or equal to N-1；Or control corresponding to any RE in a time-frequency region in two time-frequency regions Channel forming member numbering processed is k, and control channel composition member's numbering is n corresponding in another time-frequency region a RE, the Two corresponding relations include：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 Physical Resource Block The subcarrier number internally included, P=N/2, N are Physical Resource Block to the number for the control channel composition member that can be sent, N For even number.
Optionally, control channel composition member includes sets of resource units or increasing corresponding to enhancing channel controller eCCE Strong resource unit group eREG.
Optionally, processor 12 is specifically used for：Determine eCCE corresponding RE in Physical Resource Block set, one ECCE corresponds to any two eREG；Or eCCE corresponding RE in Physical Resource Block set is determined, one eCCE pairs Answer any four eREG.
The base station that the present embodiment provides, with the Physical Downlink Control Channel ePDCCH's of enhancing provided in an embodiment of the present invention Sending method is corresponding, is the execution equipment of this method, and it performs the process of this method and can be found in Fig. 1-Fig. 5, and Figure 10 institutes Corresponding description in the embodiment of the method shown, will not be repeated here.
The base station that the present embodiment provides, PRB pair can be divided at least two regions, and the RE that PRB pair includes is corresponded to respectively Any RE in the control channel composition member that at least two have different numberings, at least two regions in a region is corresponding Control channel composition member's numbering, between corresponding with the RE in other at least one regions control channel composition member's numbering One-to-one relationship be present, so that can uniformly include on RE corresponding to the control channel composition member that base station determines various The control channel composition member of numbering, realize that the control channel composition member for removing pilot-frequency expense numbers RE included number to the greatest extent Amount is balanced, the transmission performance of the control channel composition member of balanced various patterns.
Figure 12 is the structural representation of terminal one embodiment provided by the invention, as shown in figure 12, an ePDCCH quilt The physical resource being mapped to includes at least one control channel composition member, and a Physical Resource Block is to can be used in sending at least Two control channels form member, and Physical Resource Block is to being divided at least two regions, and Physical Resource Block is to included resource Unit R E corresponds respectively at least two control channels composition member, and at least two control channels composition member has difference respectively Control channel composition member's numbering, Control Channel Group corresponding at least one RE in a region at least two regions Numbered into member, control channel composition member's numbering corresponding with the RE in other at least one regions at least two regions Between one-to-one relationship be present；
Terminal includes：Receiver 21 and processor 22；
Receiver 21, receive what base station was sent for forming member corresponding RE in Physical Resource Block by control channel Control channel forms member, and control channel composition member corresponding RE in Physical Resource Block is determined by base station；
Processor 22, the control information for being carried to control channel composition member parse.
Optionally, Physical Resource Block is to being divided at least two regions, including：At least one Physical Resource Block centering it is every Individual Physical Resource Block is to being divided at least two regions.
Optionally, the two control channels composition member's numbering that one-to-one relationship be present differs.
Optionally, the RE at least one subcarrier that any one region at least two regions is included corresponds to extremely Few 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 Member is formed corresponding at least two control channels.
Optionally, the RE at least one subcarrier that any one region at least two regions is included corresponds to extremely Few two control channels composition member, including：On each subcarrier that any one region at least two regions is included RE corresponds 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 Member is formed corresponding at least two control channels, including：Any one region at least two regions included it is each just The RE on frequency division multiplex OFDM symbol is handed over to correspond at least two control channels composition member.
Optionally, exist at least one in two RE corresponding to control channel composition member's numbering of one-to-one relationship 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 being according to temporal partitioning 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, control channel composition member compiles corresponding at least one RE in a region at least two regions Number, exist between control channel composition member's numbering corresponding with the RE in other at least one regions at least two regions One-to-one relationship, including：If drawn according to two time-frequency regions of size identical of frequency domain division or according to time domain and frequency domain It is divided into four time-frequency regions of size identical, control channel composition member compiles corresponding at least one RE in a time-frequency region Number, with the RE in other at least one time-frequency regions corresponding to control channel composition member numbering between exist first it is corresponding pass System；If according to temporal partitioning two time-frequency regions of size identical or be divided into size identical according to time domain and frequency domain Four time-frequency regions, control channel composition member's numbering corresponding at least one RE in a time-frequency region, with other at least The second corresponding relation be present between control channel composition member's numbering corresponding to RE in one time-frequency region.
Optionally, if be divided into according to two time-frequency regions of size identical of frequency domain division or according to time domain and frequency domain Four time-frequency regions of size identical, control channel composition member's numbering corresponding at least one RE in a time-frequency region, The first corresponding relation be present between control channel composition member's numbering corresponding with the RE in other at least one time-frequency regions, wrap Include：If according to frequency domain division two time-frequency regions of size identical or be divided into size identical according to time domain and frequency domain Four time-frequency regions, control channel composition member's numbering corresponding to any RE in a time-frequency region, with another time-frequency region Between control channel composition member's numbering corresponding to interior RE the first corresponding relation is established according to the first rule.
Optionally, Physical Resource Block is to including f subcarrier, f is even number, if the size identical divided according to frequency domain Two time-frequency regions, the first rule include：In two time-frequency regions in a time-frequency region and in Physical Resource Block pair Control channel composition member's numbering corresponding to j-th of OFDM symbol on i-th of subcarrier corresponding to RE, and in two time-frequencies 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 in region RE corresponding to control channel composition member numbering between the first corresponding relation be present；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 Including：J-th 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 to OFDM symbol, with another time-frequency region in two time-frequency regions Control Channel Group corresponding to interior and j-th of OFDM symbol in the Physical Resource Block on the f-i subcarrier corresponding to RE The first corresponding relation be present between being numbered into member.
Optionally, control channel corresponding to any RE in a time-frequency region in two time-frequency regions forms member Numbering is k, and control channel composition member's numbering is n corresponding in another time-frequency region a RE, and the first corresponding relation includes： K+n=N-1, N are the number that Physical Resource Block forms member to the control channel that can be sent, and k value is more than or equal to 0 And the integer 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；Or two Control channel composition member's numbering is k corresponding to any RE in a time-frequency region in individual time-frequency region, another time-frequency area Control channel composition member's numbering is n corresponding to a RE in domain, and the first corresponding relation includes：n=MOD（K+q, N）, N is thing Reason resource block forms the number of member to the control channel that can be sent, and MOD is modulo operation, and k value is more than or equal to 0 And the integer less than or equal to N-1, n value are the integer more than or equal to 0 and less than or equal to N-1, q to be more than or Integer equal to 0 and less than or equal to N-1；Or any RE pairs in a time-frequency region in two time-frequency regions The control channel composition member's numbering answered is k, control channel composition member's numbering corresponding in another time-frequency region a RE For n, 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, n=P-1-k, T are physics The subcarrier number that resource block internally includes, P=N/2, k value are 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 Physical Resource Block to the control channel that can send The number of forming member, N are even number.
Optionally, if according to two time-frequency regions of size identical of temporal partitioning or according to time domain and frequency domain division For four time-frequency regions of size identical, control channel composition member compiles corresponding at least one RE in a time-frequency region Number, with the RE in other at least one time-frequency regions corresponding to control channel composition member numbering between exist second it is corresponding pass System, including：If according to temporal partitioning two time-frequency regions of size identical or be divided into size according to time domain and frequency domain Four time-frequency regions of identical, control channel composition member's numbering corresponding to any RE in a time-frequency region, with it is another when Between control channel composition member's numbering corresponding to RE in frequency domain the second corresponding relation is established according to Second Rule.
Optionally, for Physical Resource Block to there is g OFDM symbol on one sub-carrier, g is even number, if drawn according to time domain In two time-frequency regions of the size identical being divided to, Second Rule includes：In a time-frequency region and position in two time-frequency regions Member is formed in the control channel corresponding to RE corresponding to j-th of OFDM symbol on i-th of subcarrier of Physical Resource Block centering Numbering, with the jth in two time-frequency regions in another time-frequency region and in the Physical Resource Block on i-th of subcarrier+ The second corresponding relation be present between control channel composition member's numbering corresponding to g/2 OFDM symbol corresponding to RE；Or thing Resource block is managed to there is g OFDM symbol on one sub-carrier, g is even number, if the size identical two according to temporal partitioning In individual time-frequency region, Second Rule includes：In two time-frequency regions in a time-frequency region and in Physical Resource Block pair Control channel composition member's numbering corresponding to j-th of OFDM symbol on i-th of subcarrier corresponding to RE, and in two time-frequencies Corresponding to the g-j OFDM symbol in region in another time-frequency region and on i-th of subcarrier in Physical Resource Block The second corresponding relation be present between control channel composition member's numbering corresponding to RE.
Optionally, control channel corresponding to any RE in a time-frequency region in two time-frequency regions forms member Numbering is k, and control channel corresponding in another time-frequency region a RE forms member's numbering n, and the second corresponding relation is：k+n= N-1, N are the number that Physical Resource Block forms member to the control channel that can send, k value be more than or equal to 0 and Integer 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；Or at two Control channel composition member's numbering is k corresponding to any RE in a time-frequency region in frequency domain, in another time-frequency region A RE corresponding to control channel composition member numbering be n, the second corresponding relation includes：n=MOD（K+q, N）, N is physics money The number for the control channel composition member that source block internally includes, MOD are modulo operation, and k value is more than or equal to 0 and small In 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 more than or equal to 0 And the integer less than or equal to N-1；Or control corresponding to any RE in a time-frequency region in two time-frequency regions Channel forming member numbering processed is k, and control channel composition member's numbering is n corresponding in another time-frequency region a RE, the Two corresponding relations include：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 Physical Resource Block The subcarrier number internally included, P=N/2, N are Physical Resource Block to the number for the control channel composition member that can be sent, N For even number.
Optionally, control channel composition member includes sets of resource units or increasing corresponding to enhancing channel controller eCCE Strong resource unit group eREG.
The terminal that the present embodiment provides, with the Physical Downlink Control Channel ePDCCH's of enhancing provided in an embodiment of the present invention Sending method is corresponding, is the execution equipment of this method, and it is real that it performs the method that the process of this method can be found in shown in Fig. 3-Fig. 9 The corresponding description in example is applied, will not be repeated here.
The terminal that the present embodiment provides, the Physical Downlink Control Channel ePDCCH for the enhancing that the present embodiment provides sender Method, PRB pair can be divided at least two regions, and the RE that PRB pair includes, which corresponds respectively at least two, has different numberings Control channel forms member, control channel composition member's numbering corresponding to any RE at least two regions in a region, One-to-one relationship be present between control channel composition member's numbering corresponding with the RE in other at least one regions, so that Obtain uniformly the control channel including various numberings can form member corresponding to the control channel composition member that terminal receives on RE, Realize that the control channel composition member for removing pilot-frequency expense numbers RE included number equilibrium as far as possible, the control of balanced various patterns The transmission performance of channel forming member processed.
It is apparent to those skilled in the art that for convenience and simplicity of description, only with above-mentioned each function The division progress of module, can be as needed and by above-mentioned function distribution by different function moulds for example, in practical application Block is completed, i.e., the internal structure of device is divided into different functional modules, to complete all or part of work(described above Energy.The specific work process of the system, apparatus, and unit of foregoing description, it may be referred to corresponding in preceding method embodiment Journey, it will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be with Realize by another way.For example, device embodiment described above is only schematical, for example, module or unit Division, only a kind of division of logic function, can there is other dividing mode, such as multiple units or group when actually realizing Part can combine or be desirably integrated into another system, or some features can be ignored, or not perform.It is another, it is shown Or the mutual coupling discussed or direct-coupling or communication connection can be by some interfaces, device or unit it is indirect Coupling or communication connection, can be electrical, mechanical or other forms.
The unit illustrated as separating component can be or may not be physically separate, be shown as unit Part can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple networks On unit.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 each embodiment of the application can be integrated in a processing unit, can also That unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated list Member can both be realized in the form of hardware, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and is used as independent production marketing or use When, it can be stored in a computer read/write memory medium.Based on such understanding, the technical scheme of the application is substantially The part to be contributed in other words to prior art or all or part of the technical scheme can be in the form of software products Embody, the computer software product is stored in a storage medium, including some instructions are causing a computer Equipment（Can be personal computer, server, or network equipment etc.）Or processor（processor）It is each to perform the application The all or part of step of embodiment methods described.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage （ROM, Read-Only Memory）, random access memory（RAM, Random Access Memory）, magnetic disc or CD Etc. it is various can be with the medium of store program codes.
Described above, above example is only to illustrate the technical scheme of the application, rather than its limitations；Although with reference to before Embodiment is stated the application is described in detail, it will be understood by those within the art that：It still can be to preceding State the technical scheme described in each embodiment to modify, or equivalent substitution is carried out to which part technical characteristic；And these Modification is replaced, and the essence of appropriate technical solution is departed from the spirit and scope of each embodiment technical scheme of the application.

Claims (62)

  1. A kind of 1. Physical Downlink Control Channel ePDCCH of enhancing sending method, it is characterised in that
    The physical resource that one ePDCCH is mapped to includes at least one control channel composition member, a Physical Resource Block pair It can be used in sending at least two control channels composition member, the Physical Resource Block is described to being divided at least two regions Physical Resource Block included resource unit RE is corresponded respectively at least two control channels composition member, described at least two There is control channel composition member different control channel composition members to number respectively, an area at least two region Control channel composition member's numbering corresponding at least one RE in domain, with least two region other are at least one One-to-one relationship be present between control channel composition member's numbering corresponding to RE in region；
    Methods described includes：
    Base station determines control channel composition member corresponding RE in the Physical Resource Block pair；
    The base station forms member corresponding RE in the Physical Resource Block pair by the control channel and sends the control The control information of channel forming member carrying.
  2. 2. according to the method for claim 1, 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.
  3. 3. according to the method for claim 1, it is characterised in that two Control Channel Groups that one-to-one relationship be present Differed into member's numbering.
  4. 4. according to the method described in claim any one of 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 channel forms member；Or,
    The RE at least one orthogonal frequency division multiplex OFDM symbol that any one region at least two region is included Member is formed corresponding at least two control channels.
  5. 5. according to the method for claim 4, it is characterised in that any one region at least two region is included At least one subcarrier on RE correspond at least two control channels composition member, including：
    The RE on each subcarrier that any one region at least two region is included corresponds at least two controls Channel forming member；Or,
    The RE at least one orthogonal frequency division multiplex OFDM symbol that any one region at least two region is included Member is formed corresponding at least two control channels, including：
    RE on each orthogonal frequency division multiplex OFDM symbol that any one region at least two region is included is corresponding Member is formed at least two control channels.
  6. 6. according to the method for claim 1, it is characterised in that it is described one-to-one relationship be present control channel composition into At least one RE in two RE corresponding to member's numbering is the RE for not carrying demodulated reference signal DMRS.
  7. 7. according to the method for claim 1, 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.
  8. 8. according to the method for claim 7, it is characterised in that in a region at least two region at least Control channel composition member's numbering corresponding to one RE, with the RE in other at least one regions at least two region One-to-one relationship be present between corresponding control channel composition member's numbering, including：
    If it is divided into size identical according to two time-frequency regions of size identical of frequency domain division or according to time domain and frequency domain Four time-frequency regions, control channel composition member's numbering corresponding at least one RE in a time-frequency region, with other at least The first corresponding relation be present between control channel composition member's numbering corresponding to RE in one time-frequency region；
    It is if according to two time-frequency regions of size identical of temporal partitioning or identical being divided into size with frequency domain according to time domain Four time-frequency regions, control channel composition member's numbering corresponding at least one RE in a time-frequency region, with other extremely The second corresponding relation be present between control channel composition member's numbering corresponding to RE in a few time-frequency region.
  9. 9. according to the method for claim 8, it is characterised in that if the size identical two divided according to frequency domain Time-frequency region is divided into four time-frequency regions of size identical according to time domain and frequency domain, at least one in a time-frequency region Control channel composition member's numbering corresponding to RE, corresponding with the RE in other at least one time-frequency regions control channel composition into The first corresponding relation be present between member's numbering, including：
    If two time-frequency regions of size identical or identical being divided into size with frequency domain according to time domain divided according to frequency domain Four time-frequency regions, control channel composition member's numbering corresponding to any RE in a time-frequency region, with another time-frequency area Between control channel composition member's numbering corresponding to RE in domain the first corresponding relation is established according to the first rule.
  10. 10. according to the method for claim 9, it is characterised in that the Physical Resource Block is to including f subcarrier, the f For even number, if two time-frequency regions of size identical divided according to frequency domain, first rule include：When described two J-th of OFDM symbol pair in frequency domain in a time-frequency region and on described i-th of subcarrier of Physical Resource Block centering Control channel composition member's numbering corresponding to the RE answered, with another time-frequency region and position in described two time-frequency regions Control Channel Group corresponding to j-th of OFDM symbol in the Physical Resource Block on the i-th+f/2 subcarriers corresponding to RE First corresponding relation be present between being numbered into member；Or
    The Physical Resource Block is to including f subcarrier, the f is the integer more than or equal to 2, if according to frequency domain division Two time-frequency regions of size identical, first rule include：In described two time-frequency regions in a time-frequency region and Control Channel Group corresponding to j-th of OFDM symbol on described i-th of subcarrier of Physical Resource Block centering corresponding to RE Numbered into member, with described two time-frequency regions in another time-frequency region and in the Physical Resource Block f-i Have described first between control channel composition member's numbering corresponding to j-th of OFDM symbol on individual subcarrier corresponding to RE Corresponding relation.
  11. 11. the method according to claim 9 or 10, it is characterised in that
    Control channel composition member's numbering is corresponding to any RE in a time-frequency region in described two time-frequency regions K, control channel composition member's numbering is n corresponding to a RE in another time-frequency region, and first corresponding relation includes：k+ N=N-1, N are the number that the Physical Resource Block forms member to the control channel that can send, k value be more than Or the integer 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；Or Person,
    Control channel composition member's numbering is corresponding to any RE in a time-frequency region in described two time-frequency regions K, control channel composition member's numbering is n corresponding to a RE in another time-frequency region, and first corresponding relation includes：n =MOD (k+q, N), N are the number that the Physical Resource Block forms member to the control channel that can be sent, and MOD is to take 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 more than or equal to 0 and small In or equal to N-1 integer, q be more than or equal to 0 and less than or equal to N-1 integer；Or
    Control channel composition member's numbering is corresponding to any RE in a time-frequency region in described two time-frequency regions K, control channel composition member's numbering is n corresponding to a RE in another time-frequency region, and first corresponding relation includes：If K is more than P-1, then n=T-1-k；If k is less than or equal to P-1, n=P-1-k, T are the son that the Physical Resource Block internally includes Variable number, P=N/2, k value are the integer more than or equal to 0 and less than or equal to N-1, and n value is to be more than or wait Member is formed to the control channel that can be sent for the Physical Resource Block in 0 and the integer less than or equal to N-1, N Number, N is even number.
  12. 12. according to the method for claim 8, it is characterised in that if the size identical two according to temporal partitioning Individual time-frequency region is being divided into four time-frequency regions of size identical according to time domain and frequency domain, in a time-frequency region at least Control channel composition member's numbering, Control Channel Group corresponding with the RE in other at least one time-frequency regions corresponding to one RE The second corresponding relation be present between being numbered into member, including：
    It is if according to two time-frequency regions of size identical of temporal partitioning or identical being divided into size with frequency domain according to time domain Four time-frequency regions, control channel composition member's numbering corresponding to any RE in a time-frequency region, with another time-frequency area Between control channel composition member's numbering corresponding to RE in domain the second corresponding relation is established according to Second Rule.
  13. 13. according to the method for claim 12, it is characterised in that the Physical Resource Block to there is g on one sub-carrier Individual OFDM symbol, the g are even number, if according in two time-frequency regions of size identical of temporal partitioning, described second advises Then include：In a time-frequency region and positioned at i-th of subcarrier in the Physical Resource Block pair in described two time-frequency regions On j-th of OFDM symbol corresponding to control channel composition member's numbering corresponding to RE, and in described two time-frequency regions Corresponding to+g/2 OFDM symbols of jth in another time-frequency region and on i-th of subcarrier in the Physical Resource Block Second corresponding relation be present between control channel composition member's numbering corresponding to RE；Or
    The Physical Resource Block to there is g OFDM symbol on one sub-carrier, and the g is even number, if according to temporal partitioning Two time-frequency regions of size identical in, the Second Rule includes：A time-frequency region in described two time-frequency regions Control letter corresponding to interior and j-th of OFDM symbol on described i-th of subcarrier of Physical Resource Block centering corresponding to RE Road forming member numbers, with described two time-frequency regions the in another time-frequency region and in the Physical Resource Block Exist between control channel composition member's numbering corresponding to the g-j OFDM symbol on i subcarrier corresponding to RE described Second corresponding relation.
  14. 14. the method according to claim 12 or 13 a, it is characterised in that time-frequency in described two time-frequency regions Control channel composition member's numbering is k corresponding to any RE in region, is controlled corresponding in another time-frequency region a RE Channel forming member's numbering n, second corresponding relation are：K+n=N-1, N are the Physical Resource Block to the institute that can send State the number of control channel composition member, k value is the integer more than or equal to 0 and less than or equal to N-1, n value For the integer more than or equal to 0 and less than or equal to N-1；Or
    Control channel composition member's numbering is corresponding to any RE in a time-frequency region in described two time-frequency regions K, control channel composition member's numbering is n corresponding to a RE in another time-frequency region, and second corresponding relation includes：n =MOD (k+q, N), N are the number that the control channel that the Physical Resource Block internally includes forms member, and MOD is modulus Operation, k value is the integer more than or equal to 0 and less than or equal to N-1, and n value is more than or equal to 0 and is less than Or the integer equal to N-1, q are the integer more than or equal to 0 and less than or equal to N-1；Or
    Control channel composition member's numbering is corresponding to any RE in a time-frequency region in described two time-frequency regions K, control channel composition member's numbering is n corresponding to a RE in another time-frequency region, and second corresponding relation includes：If K is more than P-1, then n=T-1-k；If k is less than or equal to P-1, n=P-1-k, T are the son that the Physical Resource Block internally includes Variable number, P=N/2, N are the number that the Physical Resource Block forms member to the control channel that can be sent, and N is even Number.
  15. 15. according to the method for claim 1, it is characterised in that the control channel composition member includes enhancing channel control Sets of resource units corresponding to unit eCCE processed or enhancing resource unit group eREG.
  16. 16. according to the method for claim 15, it is characterised in that base station determines that control channel forms member in the physics Corresponding RE in resource block, including：
    The base station determines the RE set corresponding to an eCCE, and one eCCE corresponds to any two eREG；Or
    The base station determines the RE set corresponding to an eCCE, and one eCCE corresponds to any four eREG.
  17. 17. the Physical Downlink Control Channel ePDCCH of a kind of enhancing sending method a, it is characterised in that ePDCCH is mapped The physical resource arrived includes at least one control channel composition member, and a Physical Resource Block is to can be used in transmission at least two Control channel forms member, and the Physical Resource Block is to being divided at least two regions, and the Physical Resource Block is to included Resource unit RE corresponds respectively at least two control channels composition member, at least two control channels composition member's difference With different control channel composition member's numberings, at least one RE in a region at least two region is corresponding Control channel composition member numbering, it is corresponding with the RE in other at least one regions at least two region control One-to-one relationship be present between channel forming member numbering；
    Methods described includes：
    Terminal forms member corresponding RE in the Physical Resource Block pair by control channel and receives the control that base station is sent Channel forming member processed, the control channel composition member corresponding RE in the Physical Resource Block pair are true by the base station It is fixed；
    The control information that control channel composition member described in the terminal-pair is carried is parsed.
  18. 18. according to the method for claim 17, it is characterised in that the Physical Resource Block is to being divided at least twoth area Domain, including：
    Each Physical Resource Block of at least one Physical Resource Block centering is to being divided at least two regions.
  19. 19. according to the method for claim 17, it is characterised in that two control channels that one-to-one relationship be present Forming member's numbering differs.
  20. 20. according to the method described in claim any one of 17-19, it is characterised in that at least two region it is any one The RE at least one subcarrier that individual region is included corresponds 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 region is included Member is formed corresponding at least two control channels.
  21. 21. according to the method for claim 20, it is characterised in that wrapped in any one region at least two region The RE at least one subcarrier contained corresponds at least two control channels composition member, including：
    The RE on each subcarrier that any one region at least two region is included corresponds at least two controls Channel forming member；Or,
    The RE at least one orthogonal frequency division multiplex OFDM symbol that any one region at least two region is included Member is formed corresponding at least two control channels, including：
    RE on each orthogonal frequency division multiplex OFDM symbol that any one region at least two region is included is corresponding Member is formed at least two control channels.
  22. 22. according to the method for claim 17, it is characterised in that the control channel composition that one-to-one relationship be present At least one RE in two RE corresponding to member's numbering is the RE for not carrying demodulated reference signal DMRS.
  23. 23. according to the method for claim 17, it is characterised in that the Physical Resource Block is to being divided at least twoth area Domain, 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.
  24. 24. according to the method for claim 23, it is characterised in that in a region at least two region extremely Control channel composition member's numbering corresponding to a few RE, in other at least one regions at least two region One-to-one relationship be present between control channel composition member's numbering corresponding to RE, including：
    If it is divided into size identical according to two time-frequency regions of size identical of frequency domain division or according to time domain and frequency domain Four time-frequency regions, control channel composition member's numbering corresponding at least one RE in a time-frequency region, with other at least The first corresponding relation be present between control channel composition member's numbering corresponding to RE in one time-frequency region；
    It is if according to two time-frequency regions of size identical of temporal partitioning or identical being divided into size with frequency domain according to time domain Four time-frequency regions, control channel composition member's numbering corresponding at least one RE in a time-frequency region, with other extremely The second corresponding relation be present between control channel composition member's numbering corresponding to RE in a few time-frequency region.
  25. 25. according to the method for claim 24, it is characterised in that if the size identical two divided according to frequency domain Individual time-frequency region is divided into four time-frequency regions of size identical according to time domain and frequency domain, and at least one in a time-frequency region Control channel composition member's numbering corresponding to individual RE, control channel composition corresponding with the RE in other at least one time-frequency regions The first corresponding relation be present between member's numbering, including：
    If two time-frequency regions of size identical or identical being divided into size with frequency domain according to time domain divided according to frequency domain Four time-frequency regions, control channel composition member's numbering corresponding to any RE in a time-frequency region, with another time-frequency area Between control channel composition member's numbering corresponding to RE in domain the first corresponding relation is established according to the first rule.
  26. 26. according to the method for claim 25, it is characterised in that the Physical Resource Block is described to including f subcarrier F is even number, if two time-frequency regions of size identical divided according to frequency domain, first rule include：Described two J-th of OFDM symbol in time-frequency region in a time-frequency region and on described i-th of subcarrier of Physical Resource Block centering Corresponding to corresponding RE control channel composition member numbering, with described two time-frequency regions in another time-frequency region and Control channel corresponding to j-th of OFDM symbol on the i-th+f/2 in the Physical Resource Block subcarriers corresponding to RE First corresponding relation be present between forming member's numbering；Or
    The Physical Resource Block is to including f subcarrier, the f is the integer more than or equal to 2, if according to frequency domain division Two time-frequency regions of size identical, first rule include：In described two time-frequency regions in a time-frequency region and Control Channel Group corresponding to j-th of OFDM symbol on described i-th of subcarrier of Physical Resource Block centering corresponding to RE Numbered into member, with described two time-frequency regions in another time-frequency region and in the Physical Resource Block f-i Have described first between control channel composition member's numbering corresponding to j-th of OFDM symbol on individual subcarrier corresponding to RE Corresponding relation.
  27. 27. the method according to claim 25 or 26 a, it is characterised in that time-frequency in described two time-frequency regions Control channel composition member's numbering is k corresponding to any RE in region, is controlled corresponding in another time-frequency region a RE Channel forming member numbering is n, and first corresponding relation includes：K+n=N-1, N are the Physical Resource Block to that can send Control channel composition member number, k value is the integer more than or equal to 0 and less than or equal to N-1, n's Value is the integer more than or equal to 0 and less than or equal to N-1；Or
    Control channel composition member's numbering is corresponding to any RE in a time-frequency region in described two time-frequency regions K, control channel composition member's numbering is n corresponding to a RE in another time-frequency region, and first corresponding relation includes：n =MOD (k+q, N), N are the number that the Physical Resource Block forms member to the control channel that can be sent, and MOD is to take 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 more than or equal to 0 and small In or equal to N-1 integer, q be more than or equal to 0 and less than or equal to N-1 integer；Or
    Control channel composition member's numbering is corresponding to any RE in a time-frequency region in described two time-frequency regions K, control channel composition member's numbering is n corresponding to a RE in another time-frequency region, and first corresponding relation includes：If K is more than P-1, then n=T-1-k；If k is less than or equal to P-1, n=P-1-k, T are the son that the Physical Resource Block internally includes Variable number, P=N/2, k value are the integer more than or equal to 0 and less than or equal to N-1, and n value is to be more than or wait Member is formed to the control channel that can be sent for the Physical Resource Block in 0 and the integer less than or equal to N-1, N Number, N is even number.
  28. 28. according to the method for claim 27, it is characterised in that if the size identical two according to temporal partitioning Individual time-frequency region is being divided into four time-frequency regions of size identical according to time domain and frequency domain, in a time-frequency region at least Control channel composition member's numbering, Control Channel Group corresponding with the RE in other at least one time-frequency regions corresponding to one RE The second corresponding relation be present between being numbered into member, including：
    It is if according to two time-frequency regions of size identical of temporal partitioning or identical being divided into size with frequency domain according to time domain Four time-frequency regions, control channel composition member's numbering corresponding to any RE in a time-frequency region, with another time-frequency area Between control channel composition member's numbering corresponding to RE in domain the second corresponding relation is established according to Second Rule.
  29. 29. according to the method for claim 28, it is characterised in that the Physical Resource Block to there is g on one sub-carrier Individual OFDM symbol, the g are even number, if according in two time-frequency regions of size identical of temporal partitioning, described second advises Then include：In a time-frequency region and positioned at i-th of subcarrier in the Physical Resource Block pair in described two time-frequency regions On j-th of OFDM symbol corresponding to control channel composition member's numbering corresponding to RE, and in described two time-frequency regions Corresponding to+g/2 OFDM symbols of jth in another time-frequency region and on i-th of subcarrier in the Physical Resource Block Second corresponding relation be present between control channel composition member's numbering corresponding to RE；Or
    The Physical Resource Block to there is g OFDM symbol on one sub-carrier, and the g is even number, if according to temporal partitioning Two time-frequency regions of size identical in, the Second Rule includes：A time-frequency region in described two time-frequency regions Control letter corresponding to interior and j-th of OFDM symbol on described i-th of subcarrier of Physical Resource Block centering corresponding to RE Road forming member numbers, with described two time-frequency regions the in another time-frequency region and in the Physical Resource Block Exist between control channel composition member's numbering corresponding to the g-j OFDM symbol on i subcarrier corresponding to RE described Second corresponding relation.
  30. 30. the method according to claim 28 or 29 a, it is characterised in that time-frequency in described two time-frequency regions Control channel composition member's numbering is k corresponding to any RE in region, is controlled corresponding in another time-frequency region a RE Channel forming member's numbering n, second corresponding relation are：K+n=N-1, N are the Physical Resource Block to the institute that can send State the number of control channel composition member, k value is the integer more than or equal to 0 and less than or equal to N-1, n value For the integer more than or equal to 0 and less than or equal to N-1；Or
    Control channel composition member's numbering is corresponding to any RE in a time-frequency region in described two time-frequency regions K, control channel composition member's numbering is n corresponding to a RE in another time-frequency region, and second corresponding relation includes：n =MOD (k+q, N), N are the number that the control channel that the Physical Resource Block internally includes forms member, and MOD is modulus Operation, k value is the integer more than or equal to 0 and less than or equal to N-1, and n value is more than or equal to 0 and is less than Or the integer equal to N-1, q are the integer more than or equal to 0 and less than or equal to N-1；Or
    Control channel composition member's numbering is corresponding to any RE in a time-frequency region in described two time-frequency regions K, control channel composition member's numbering is n corresponding to a RE in another time-frequency region, and second corresponding relation includes：If K is more than P-1, then n=T-1-k；If k is less than or equal to P-1, n=P-1-k, T are the son that the Physical Resource Block internally includes Variable number, P=N/2, N are the number that the Physical Resource Block forms member to the control channel that can be sent, and N is even Number.
  31. 31. according to the method for claim 17, it is characterised in that the control channel composition member includes enhancing channel control Sets of resource units corresponding to unit eCCE processed or enhancing resource unit group eREG.
  32. 32. a kind of base station, it is characterised in that the physical resource that an ePDCCH is mapped to includes at least one Control Channel Group Into member, a Physical Resource Block is to can be used in sending at least two control channels composition member, the Physical Resource Block pair At least two regions are divided into, the Physical Resource Block corresponds respectively at least two controls letter to included resource unit RE Road forming member, at least two control channels composition member have different control channel composition member's numberings, institute respectively State corresponding at least one RE in a region at least two regions control channel composition member's numbering, with it is described at least Exist between control channel composition member's numbering corresponding to the RE in other at least one regions in two regions and correspond Relation；
    The base station includes：
    Processor, for determining control channel composition member corresponding RE in the Physical Resource Block pair；
    Transmitter, member corresponding RE in the Physical Resource Block pair is formed by the control channel and sends the control letter The control information of road forming member carrying.
  33. 33. base station according to claim 32, it is characterised in that the Physical Resource Block is to being divided at least twoth area Domain, including：
    Each Physical Resource Block of at least one Physical Resource Block centering is to being divided at least two regions.
  34. 34. base station according to claim 32, it is characterised in that two control channels that one-to-one relationship be present Forming member's numbering differs.
  35. 35. according to the base station described in claim any one of 32-34, it is characterised in that at least two region it is any one The RE at least one subcarrier that individual region is included corresponds at least two control channels composition member；Or, it is described at least The RE at least one orthogonal frequency division multiplex OFDM symbol that any one region in two regions is included corresponds at least two Individual control channel forms member.
  36. 36. base station according to claim 35, it is characterised in that wrapped in any one region at least two region The RE at least one subcarrier contained corresponds at least two control channels composition member, including：At least two region Each subcarrier for being included of any one region on RE 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 region is included Member is formed corresponding at least two control channels, including：
    RE on each orthogonal frequency division multiplex OFDM symbol that any one region at least two region is included is corresponding Member is formed at least two control channels.
  37. 37. base station according to claim 32, it is characterised in that the control channel composition that one-to-one relationship be present At least one RE in two RE corresponding to member's numbering is the RE for not carrying demodulated reference signal DMRS.
  38. 38. base station according to claim 32, it is characterised in that the Physical Resource Block is to being divided at least twoth area Domain, including：The Physical Resource Block is to being two time-frequency regions of size identical according to temporal partitioning；Or the physics money Source block according to frequency domain to being divided into two time-frequency regions of size identical；Or the Physical Resource Block is to according to time domain and frequency Domain is divided into four time-frequency regions of size identical.
  39. 39. the base station according to claim 38, it is characterised in that in a region at least two region extremely Control channel composition member's numbering corresponding to a few RE, in other at least one regions at least two region One-to-one relationship be present between control channel composition member's numbering corresponding to RE, including：
    If it is divided into size identical according to two time-frequency regions of size identical of frequency domain division or according to time domain and frequency domain Four time-frequency regions, control channel composition member's numbering corresponding at least one RE in a time-frequency region, with other at least The first corresponding relation be present between control channel composition member's numbering corresponding to RE in one time-frequency region；
    It is if according to two time-frequency regions of size identical of temporal partitioning or identical being divided into size with frequency domain according to time domain Four time-frequency regions, control channel composition member's numbering corresponding at least one RE in a time-frequency region, with other extremely The second corresponding relation be present between control channel composition member's numbering corresponding to RE in a few time-frequency region.
  40. 40. the base station according to claim 39, it is characterised in that if the size identical two divided according to frequency domain Individual time-frequency region is divided into four time-frequency regions of size identical according to time domain and frequency domain, and at least one in a time-frequency region Control channel composition member's numbering corresponding to individual RE, control channel composition corresponding with the RE in other at least one time-frequency regions The first corresponding relation be present between member's numbering, including：
    If two time-frequency regions of size identical or identical being divided into size with frequency domain according to time domain divided according to frequency domain Four time-frequency regions, control channel composition member's numbering corresponding to any RE in a time-frequency region, with another time-frequency area Between control channel composition member's numbering corresponding to RE in domain the first corresponding relation is established according to the first rule.
  41. 41. base station according to claim 40, it is characterised in that the Physical Resource Block is described to including f subcarrier F is even number, if two time-frequency regions of size identical divided according to frequency domain, first rule include：Described two J-th of OFDM symbol in time-frequency region in a time-frequency region and on described i-th of subcarrier of Physical Resource Block centering Corresponding to corresponding RE control channel composition member numbering, with described two time-frequency regions in another time-frequency region and Control channel corresponding to j-th of OFDM symbol on the i-th+f/2 in the Physical Resource Block subcarriers corresponding to RE First corresponding relation be present between forming member's numbering；Or the Physical Resource Block is to including f subcarrier, the f For the integer more than or equal to 2, if two time-frequency regions of size identical divided according to frequency domain, the first rule bag Include：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 j-th of OFDM symbol corresponding to RE, it is and another in described two time-frequency regions RE institutes are right corresponding to j-th of OFDM symbol in individual time-frequency region and on the f-i subcarrier in the Physical Resource Block First corresponding relation be present between the control channel composition member's numbering answered.
  42. 42. the base station according to claim 40 or 41 a, it is characterised in that time-frequency in described two time-frequency regions Control channel composition member's numbering is k corresponding to any RE in region, is controlled corresponding in another time-frequency region a RE Channel forming member numbering is n, and first corresponding relation includes：K+n=N-1, N are the Physical Resource Block to that can send Control channel composition member number, k value is the integer more than or equal to 0 and less than or equal to N-1, n's Value is the integer more than or equal to 0 and less than or equal to N-1；An or time-frequency in described two time-frequency regions Control channel composition member's numbering is k corresponding to any RE in region, is controlled corresponding in another time-frequency region a RE Channel forming member numbering is n, and first corresponding relation includes：N=MOD (k+q, N), N are the Physical Resource Block to energy The number of the control channel composition member enough sent, MOD are modulo operation, and k value is more than or equal to 0 and is less than Or the integer 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 more than or equal to 0 simultaneously And the integer less than or equal to N-1；Or corresponding to any RE in a time-frequency region in described two time-frequency regions Control channel composition member's numbering is k, and control channel composition member's numbering is n corresponding in another time-frequency region a RE, 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, n=P-1-k, T are institute State the subcarrier number that Physical Resource Block internally includes, P=N/2, k value is more than or equal to 0 and is 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 N is the Physical Resource Block to that can send out The number of the control channel composition member sent, N is even number.
  43. 43. base station according to claim 42, it is characterised in that if the size identical two according to temporal partitioning Individual time-frequency region is being divided into four time-frequency regions of size identical according to time domain and frequency domain, in a time-frequency region at least Control channel composition member's numbering, Control Channel Group corresponding with the RE in other at least one time-frequency regions corresponding to one RE The second corresponding relation be present between being numbered into member, including：If according to two time-frequency regions of size identical of temporal partitioning Or it is being divided into four time-frequency regions of size identical according to time domain and frequency domain, controlled corresponding to any RE in a time-frequency region Channel forming member processed numbers, according to second between control channel composition member's numbering corresponding with the RE in another time-frequency region Rule establishes the second corresponding relation.
  44. 44. base station according to claim 43, it is characterised in that the Physical Resource Block to there is g on one sub-carrier Individual OFDM symbol, the g are even number, if according in two time-frequency regions of size identical of temporal partitioning, described second advises Then include：In a time-frequency region and positioned at i-th of subcarrier in the Physical Resource Block pair in described two time-frequency regions On j-th of OFDM symbol corresponding to control channel composition member's numbering corresponding to RE, and in described two time-frequency regions Corresponding to+g/2 OFDM symbols of jth in another time-frequency region and on i-th of subcarrier in the Physical Resource Block Second corresponding relation be present between control channel composition member's numbering corresponding to RE；Or the Physical Resource Block pair There is g OFDM symbol on one sub-carrier, the g is even number, if two time-frequencies of size identical according to temporal partitioning In region, the Second Rule includes：In a time-frequency region and it is located at the physical resource in described two time-frequency regions Control channel composition member's numbering corresponding to j-th of OFDM symbol on i-th of subcarrier of block centering corresponding to RE, and in institute State g-j in two time-frequency regions in another time-frequency region and on i-th of subcarrier in the Physical Resource Block Second corresponding relation be present between control channel composition member's numbering corresponding to RE corresponding to OFDM symbol.
  45. 45. the base station according to claim 43 or 44 a, it is characterised in that time-frequency in described two time-frequency regions Control channel composition member's numbering is k corresponding to any RE in region, is controlled corresponding in another time-frequency region a RE Channel forming member's numbering n, second corresponding relation are：K+n=N-1, N are the Physical Resource Block to the institute that can send State the number of control channel composition member, k value is the integer more than or equal to 0 and less than or equal to N-1, n value For the integer more than or equal to 0 and less than or equal to N-1；An or time-frequency region in described two time-frequency regions Control channel composition member's numbering is k corresponding to interior any RE, control channel corresponding in another time-frequency region a RE Forming member's numbering is n, and second corresponding relation includes：N=MOD (k+q, N), N are that the Physical Resource Block internally includes Control channel composition member number, MOD is modulo operation, and k value is more than or equal to 0 and is 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 more than or equal to 0 and is less than Or the integer equal to N-1；Or letter is controlled corresponding to any RE in a time-frequency region in described two time-frequency regions Road forming member numbering is k, and control channel composition member's numbering is n corresponding in another time-frequency region a RE, described the Two corresponding relations include：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 physics The subcarrier number that resource block internally includes, P=N/2, N are the Physical Resource Block to the Control Channel Group that can send Into the number of member, N is even number.
  46. 46. base station according to claim 32, it is characterised in that the control channel composition member includes enhancing channel control Sets of resource units corresponding to unit eCCE processed or enhancing resource unit group eREG.
  47. 47. base station according to claim 46, it is characterised in that the processor is specifically used for：Determine an eCCE institute Corresponding RE set, one eCCE correspond to any two eREG；Or the base station determines the RE corresponding to an eCCE Set, one eCCE correspond to any four eREG.
  48. 48. a kind of terminal, it is characterised in that the physical resource that an ePDCCH is mapped to includes at least one Control Channel Group Into member, a Physical Resource Block is to can be used in sending at least two control channels composition member, the Physical Resource Block pair At least two regions are divided into, the Physical Resource Block corresponds respectively at least two controls letter to included resource unit RE Road forming member, at least two control channels composition member have different control channel composition member's numberings, institute respectively State corresponding at least one RE in a region at least two regions control channel composition member's numbering, with it is described at least Exist between control channel composition member's numbering corresponding to the RE in other at least one regions in two regions and correspond Relation；
    The terminal includes：
    Receiver, receive what base station was sent for forming member corresponding RE in the Physical Resource Block pair by control channel The control channel forms member, the control channel form member in the Physical Resource Block pair corresponding RE by the base Stand determination；
    Processor, the control information for being carried to control channel composition member parse.
  49. 49. terminal according to claim 48, it is characterised in that the Physical Resource Block is to being divided at least twoth area Domain, including：Each Physical Resource Block of at least one Physical Resource Block centering is to being divided at least two regions.
  50. 50. terminal according to claim 48, it is characterised in that two control channels that one-to-one relationship be present Forming member's numbering differs.
  51. 51. according to the terminal described in claim any one of 48-50, it is characterised in that at least two region it is any one The RE at least one subcarrier that individual region is included corresponds 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 region is included Member is formed corresponding at least two control channels.
  52. 52. terminal according to claim 51, it is characterised in that wrapped in any one region at least two region The RE at least one subcarrier contained corresponds at least two control channels composition member, including：At least two region Each subcarrier for being included of any one region on RE 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 region is included Member is formed corresponding at least two control channels, including：Any one region at least two region is included every RE on individual orthogonal frequency division multiplex OFDM symbol corresponds at least two control channels composition member.
  53. 53. terminal according to claim 48, it is characterised in that the control channel composition that one-to-one relationship be present At least one RE in two RE corresponding to member's numbering is the RE for not carrying demodulated reference signal DMRS.
  54. 54. terminal according to claim 48, it is characterised in that the Physical Resource Block is to being divided at least twoth area Domain, including：The Physical Resource Block is to being two time-frequency regions of size identical according to temporal partitioning；Or the physics money Source block according to frequency domain to being divided into two time-frequency regions of size identical；Or the Physical Resource Block is to according to time domain and frequency Domain is divided into four time-frequency regions of size identical.
  55. 55. terminal according to claim 54, it is characterised in that in a region at least two region extremely Control channel composition member's numbering corresponding to a few RE, in other at least one regions at least two region One-to-one relationship be present between control channel composition member's numbering corresponding to RE, including：If the size divided according to frequency domain Two time-frequency regions of identical are divided into four time-frequency regions of size identical according to time domain and frequency domain, in a time-frequency region At least one RE corresponding to control channel composition member numbering, it is corresponding with the RE in other at least one time-frequency regions control The first corresponding relation be present between channel forming member numbering；If according to two time-frequency regions of size identical of temporal partitioning Or it is being divided into four time-frequency regions of size identical according to time domain and frequency domain, at least one RE in a time-frequency region is corresponding Control channel composition member's numbering, corresponding with the RE in other at least one time-frequency regions control channel composition member's numbering Between the second corresponding relation be present.
  56. 56. terminal according to claim 55, it is characterised in that if the size identical two divided according to frequency domain Individual time-frequency region is divided into four time-frequency regions of size identical according to time domain and frequency domain, and at least one in a time-frequency region Control channel composition member's numbering corresponding to individual RE, control channel composition corresponding with the RE in other at least one time-frequency regions The first corresponding relation be present between member's numbering, including：If according to frequency domain division two time-frequency regions of size identical or Four time-frequency regions of size identical are being divided into according to time domain and frequency domain, are being controlled corresponding to any RE in a time-frequency region Channel forming member numbers, according to the first rule between control channel composition member's numbering corresponding with the RE in another time-frequency region Then establish the first corresponding relation.
  57. 57. terminal according to claim 56, it is characterised in that the Physical Resource Block is described to including f subcarrier F is even number, if two time-frequency regions of size identical divided according to frequency domain, first rule include：Described two J-th of OFDM symbol in time-frequency region in a time-frequency region and on described i-th of subcarrier of Physical Resource Block centering Corresponding to corresponding RE control channel composition member numbering, with described two time-frequency regions in another time-frequency region and Control channel corresponding to j-th of OFDM symbol on the i-th+f/2 in the Physical Resource Block subcarriers corresponding to RE First corresponding relation be present between forming member's numbering；Or the Physical Resource Block is to including f subcarrier, the f For the integer more than or equal to 2, if two time-frequency regions of size identical divided according to frequency domain, the first rule bag Include：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 j-th of OFDM symbol corresponding to RE, it is and another in described two time-frequency regions RE institutes are right corresponding to j-th of OFDM symbol in individual time-frequency region and on the f-i subcarrier in the Physical Resource Block First corresponding relation be present between the control channel composition member's numbering answered.
  58. 58. the terminal according to claim 56 or 57 a, it is characterised in that time-frequency in described two time-frequency regions Control channel composition member's numbering is k corresponding to any RE in region, is controlled corresponding in another time-frequency region a RE Channel forming member numbering is n, and first corresponding relation includes：K+n=N-1, N are the Physical Resource Block to that can send Control channel composition member number, k value is the integer more than or equal to 0 and less than or equal to N-1, n's Value is the integer more than or equal to 0 and less than or equal to N-1；An or time-frequency in described two time-frequency regions Control channel composition member's numbering is k corresponding to any RE in region, is controlled corresponding in another time-frequency region a RE Channel forming member numbering is n, and first corresponding relation includes：N=MOD (k+q, N), N are the Physical Resource Block to energy The number of the control channel composition member enough sent, MOD are modulo operation, and k value is more than or equal to 0 and is less than Or the integer 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 more than or equal to 0 simultaneously And the integer less than or equal to N-1；Or corresponding to any RE in a time-frequency region in described two time-frequency regions Control channel composition member's numbering is k, and control channel composition member's numbering is n corresponding in another time-frequency region a RE, 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, n=P-1-k, T are institute State the subcarrier number that Physical Resource Block internally includes, P=N/2, k value is more than or equal to 0 and is 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 N is the Physical Resource Block to that can send out The number of the control channel composition member sent, N is even number.
  59. 59. terminal according to claim 58, it is characterised in that if the size identical two according to temporal partitioning Individual time-frequency region is being divided into four time-frequency regions of size identical according to time domain and frequency domain, in a time-frequency region at least Control channel composition member's numbering, Control Channel Group corresponding with the RE in other at least one time-frequency regions corresponding to one RE The second corresponding relation be present between being numbered into member, including：If according to two time-frequency regions of size identical of temporal partitioning Or it is being divided into four time-frequency regions of size identical according to time domain and frequency domain, controlled corresponding to any RE in a time-frequency region Channel forming member processed numbers, according to second between control channel composition member's numbering corresponding with the RE in another time-frequency region Rule establishes the second corresponding relation.
  60. 60. terminal according to claim 59, it is characterised in that the Physical Resource Block to there is g on one sub-carrier Individual OFDM symbol, the g are even number, if according in two time-frequency regions of size identical of temporal partitioning, described second advises Then include：In a time-frequency region and positioned at i-th of subcarrier in the Physical Resource Block pair in described two time-frequency regions On j-th of OFDM symbol corresponding to control channel composition member's numbering corresponding to RE, and in described two time-frequency regions Corresponding to+g/2 OFDM symbols of jth in another time-frequency region and on i-th of subcarrier in the Physical Resource Block Second corresponding relation be present between control channel composition member's numbering corresponding to RE；Or the Physical Resource Block pair There is g OFDM symbol on one sub-carrier, the g is even number, if two time-frequencies of size identical according to temporal partitioning In region, the Second Rule includes：In a time-frequency region and it is located at the physical resource in described two time-frequency regions Control channel composition member's numbering corresponding to j-th of OFDM symbol on i-th of subcarrier of block centering corresponding to RE, and in institute State g-j in two time-frequency regions in another time-frequency region and on i-th of subcarrier in the Physical Resource Block Second corresponding relation be present between control channel composition member's numbering corresponding to RE corresponding to OFDM symbol.
  61. 61. the terminal according to claim 59 or 60 a, it is characterised in that time-frequency in described two time-frequency regions Control channel composition member's numbering is k corresponding to any RE in region, is controlled corresponding in another time-frequency region a RE Channel forming member's numbering n, second corresponding relation are：K+n=N-1, N are the Physical Resource Block to the institute that can send State the number of control channel composition member, k value is the integer more than or equal to 0 and less than or equal to N-1, n value For the integer more than or equal to 0 and less than or equal to N-1；An or time-frequency region in described two time-frequency regions Control channel composition member's numbering is k corresponding to interior any RE, control channel corresponding in another time-frequency region a RE Forming member's numbering is n, and second corresponding relation includes：N=MOD (k+q, N), N are that the Physical Resource Block internally includes Control channel composition member number, MOD is modulo operation, and k value is more than or equal to 0 and is 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 more than or equal to 0 and is less than Or the integer equal to N-1；Or letter is controlled corresponding to any RE in a time-frequency region in described two time-frequency regions Road forming member numbering is k, and control channel composition member's numbering is n corresponding in another time-frequency region a RE, described the Two corresponding relations include：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 physics The subcarrier number that resource block internally includes, P=N/2, N are the Physical Resource Block to the Control Channel Group that can send Into the number of member, N is even number.
  62. 62. terminal according to claim 48, it is characterised in that the control channel composition member includes enhancing channel control Sets of resource units corresponding to unit eCCE processed or enhancing resource unit group eREG.
CN201280007796.2A 2012-08-01 2012-08-01 The Physical Downlink Control Channel ePDCCH of enhancing sending method, base station and terminal Active CN103891343B (en)

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WO2011103309A3 (en) * 2010-02-17 2011-12-29 Zte (Usa) Inc. Methods and systems for csi-rs transmission in lte-advance systems
CN102256358A (en) * 2011-07-08 2011-11-23 电信科学技术研究院 Method, device and system for transmitting and receiving data
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