CN103582128A - Method and equipment for transmitting data - Google Patents
Method and equipment for transmitting data Download PDFInfo
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- CN103582128A CN103582128A CN201210270194.8A CN201210270194A CN103582128A CN 103582128 A CN103582128 A CN 103582128A CN 201210270194 A CN201210270194 A CN 201210270194A CN 103582128 A CN103582128 A CN 103582128A
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Abstract
The embodiment of the invention relates to the technical field of wireless communication, in particular to a method and equipment for transmitting data. The method and equipment for transmitting the data are used for solving the problem that ePDCCH transmission cannot be carried out between a network side and user equipment due to the fact that currently the structure of localized eCCEs and the structure of eREGs are not determined yet. The method for transmitting the data comprises the steps of determining the localized eCCEs and distributed eCCEs, and carrying out ePDCCH transmission or receiving processing through the determined localized eCCEs or the determined distributed eCCEs, wherein one PRB pair comprises N localized eCCEs, the localized eCCEs are multiplexed in a frequency division multiplexing mode, one localized eCCE comprises M eREGs, and one distributed eCCE is formed by the eREGs which are contained in the localized eCCEs and are distributed on different PRB pairs. By means of the method and equipment for transmitting the data, the ePDCCH transmission can be carried out between the network side and the user equipment.
Description
Technical field
The present invention relates to wireless communication technology field, particularly a kind of method and apparatus that transmits data.
Background technology
At the LTE of Rel (version)-11 (Long Term Evolution, Long Term Evolution) ePDCCH (enhanced Physical Downlink Control Channel in system, the Physical Downlink Control Channel strengthening) in PDSCH (Physical Downlink Shared Channel, physical down link sharing channel) region, send.The transmission means of ePDCCH have two kinds a kind of be centralized (localized) transmission, a kind of be distributing (distributed) transmission.
The previous PRB of order (physical resource block, Physical Resource Block) pair (to) in can shine upon 4 eCCE (enhanced Control Channel Element, the control channel unit of enhancing).At the next PRB pair of localized transmission mode, be divided into the corresponding eCCE in unit of 4 Resource Units, as shown in figure lA.According to PRB pair of current conclusion, be likely divided into 8 or 12 or 16 or 24 or 36 eREG (enhanced Resource Element Group, the resource unit group of enhancing).Distributing eCCE is comprised of a plurality of eREG and these eREG are distributed on different PRB pair, as shown in Figure 1B, one of them PRB pair is divided into 16 eREG, and concrete dividing mode is likely different, and a distributing eCCE is comprised of 4 eREG that are distributed on 4 PRB pair.But the structure of the structure of current centralized eCCE and eREG also do not determine, the ePDCCH that subscriber equipment cannot search network side be sent.
In sum, the structure of current centralized eCCE and the structure of eREG are not also determined, are made network side cannot carry out ePDCCH transmission process and make subscriber equipment cannot carry out ePDCCH reception & disposal.
Summary of the invention
A kind of method and apparatus that transmits data that the embodiment of the present invention provides, makes network side can carry out ePDCCH transmission process and makes subscriber equipment can carry out ePDCCH reception & disposal.
A kind of method of transmitting data that the embodiment of the present invention provides, comprising:
Determine centralized eCCE and distributing eCCE;
Centralized eCCE or distributing eCCE by determining, carry out ePDCCH transmission or reception & disposal;
Wherein, a PRB is to comprising N centralized eCCE, and described eCCE is multiplexing according to frequency division multiplexing mode, a described centralized eCCE comprises M eREG, a plurality of eREG that are distributed on different PRB pair that distributing eCCE is comprised by described centralized eCCE form, and N and M are positive integers.
A kind of equipment that transmits data that the embodiment of the present invention provides, comprising:
Determination module, for determining centralized eCCE and distributing eCCE;
Processing module, for by the centralized eCCE or the distributing eCCE that determine, carries out ePDCCH transmission or reception & disposal;
Wherein, a PRB is to comprising N centralized eCCE, and described eCCE is multiplexing according to frequency division multiplexing mode, a described centralized eCCE comprises M eREG, a plurality of eREG that are distributed on different PRB pair that distributing eCCE is comprised by described centralized eCCE form, and N and M are positive integers.
Because the embodiment of the present invention is determined centralized eCCE and distributing eCCE, one of them PRB is to comprising N centralized eCCE, and described eCCE is multiplexing according to frequency division multiplexing mode, a described centralized eCCE comprises M eREG, a plurality of eREG that are distributed on different PRB pair that distributing eCCE is comprised by described centralized eCCE form, make network side can carry out ePDCCH transmission process and make subscriber equipment can carry out ePDCCH reception & disposal, realized between network side and subscriber equipment and transmitted ePDCCH, thereby improved systematic function.
Accompanying drawing explanation
Figure 1A is the schematic diagram of centralized eCCE in background technology;
Figure 1B is the schematic diagram of distributing eCCE in background technology;
Fig. 2 is the method flow schematic diagram of embodiment of the present invention transmission data;
Fig. 3 is the structural representation of PRB of the embodiment of the present invention to interior eCCE;
Fig. 4 is the structural representation that an a kind of centralized eCCE of the embodiment of the present invention is divided into 4 eREG;
Fig. 5 is the structural representation that the another kind of centralized eCCE of the embodiment of the present invention is divided into 4 eREG;
Fig. 6 is that centralized eCCE of the embodiment of the present invention is divided into 3 eREG, and a distributing eCCE is the structural representation of 3 subcarriers;
Fig. 7 is that centralized eCCE of the embodiment of the present invention is 3 subcarriers, and a distributing eCCE is the structural representation of 4 subcarriers;
Fig. 8 is the device structure schematic diagram of embodiment of the present invention transmission data.
Embodiment
The embodiment of the present invention is determined centralized eCCE and distributing eCCE, one of them PRB is to comprising N centralized eCCE, and described eCCE is multiplexing according to frequency division multiplexing mode, a described centralized eCCE comprises M eREG, a plurality of eREG that are distributed on different PRB pair that distributing eCCE is comprised by described centralized eCCE form and make network side can carry out ePDCCH transmission process and make subscriber equipment can carry out ePDCCH reception & disposal, have realized between network side and subscriber equipment and have transmitted ePDCCH.
Below in conjunction with Figure of description, the embodiment of the present invention is described in further detail.
As shown in Figure 2, the method for embodiment of the present invention transmission data comprises the following steps:
Wherein, a PRB is to comprising N centralized eCCE, and described eCCE is multiplexing according to frequency division multiplexing mode, a described centralized eCCE comprises M eREG, a plurality of eREG that are distributed on different PRB pair that distributing eCCE is comprised by described centralized eCCE form, and N and M are positive integers.
Preferably, N=M=4.
Wherein, RE (Resource Element, the resource element) number that each centralized eCCE comprises is identical or different.
If an eREG consists of a subcarrier, distributing eCCE forms by being distributed in X the subcarrier of the X in PRB pair; Wherein, X is positive integer.
If distributing eCCE, in a PRB pair, sends diversity transmission if need to realize, preferably, a subcarrier comprises at least two time slots and transmits according to sending diversity mode.Such as 2 antennas, a subcarrier comprises 2 time slots.
Wherein, a described centralized eCCE consists of Y subcarrier.
Preferably, X=4, Y=3.
The executive agent of the embodiment of the present invention can be subscriber equipment or network equipment.If the executive agent of the embodiment of the present invention is subscriber equipment, in step 202, carry out ePDCCH reception & disposal; If the executive agent of the embodiment of the present invention is network equipment, in step 202, carry out ePDCCH transmission processing.
In force, the network equipment of the embodiment of the present invention can be base station (such as macro base station, Home eNodeB etc.), can be also RN (relaying) equipment, can also be other network equipment.
In Fig. 3, a PRB pair is divided into 4 eCCE.For the channel, signal that do not embody other in reduced graph are as PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel), CRS (Cell-specific reference signals, the exclusive pilot signal in community), CSI-RS (channel condition information measuring reference signals) etc.3 continuous subcarriers form centralized (localized) eCCE.In a centralized eCCE, comprise a plurality of eREG, and the definition of eREG is only just useful for distributing (distributed ePDCCH).A distributing eCCE consists of a plurality of eREG that are distributed on different PRB pair.The embodiment of the present invention is further subdivided into a plurality of eREG in a centralized eCCE and these are distributed in eREG on different PRB pair and form distributing eCCE.Several embodiment have been provided below.
Example one, as shown in Figure 4:
A PRB is divided into 4 centralized (localized) eCCE, and centralized (localized) eCCE is divided into 4 eREG.In figure except DM-RS (Demodulation reference signal, demodulated reference signal) in addition the RE of same numbers form an eREG, the RE interval of same numbers occurs, the RE of different digital sequentially sorts.In Fig. 4 nethermost a line from left to right sort then above a line sort down from right to left, then a line above from left to right continues sequence.Final 2 RE are available.This sortord can guarantee that the RE number that each eREG comprises is identical, comprises 9 RE.
It should be noted that, except above-mentioned sortord, other can guarantee the applicable equally embodiment of the present invention of the same number of sortord of RE that each eREG comprises.
Certainly, RE number that each eREG comprises is identical is a kind of preferably execution mode, and the RE number not identical (part is different or all different) that each eREG comprises also can be suitable for the bright embodiment of this law.
When centralized (localized) eCCE is divided into the eREG of other quantity, can adopt above-mentioned sortord equally, the RE number that just each eREG comprises is different.
Such as centralized (localized) eCCE can be divided into 2 or 3 or 6 or 9 eREG.
Preferably, in a PRB pair, can comprise 8 or 12 or 16 or 24 or 36 eREG.
If comprise 4 eCCE in a PRB pair, and corresponding 16 eREG, preferably an eCCE can be divided into 4 eREG.
Example two, as shown in Figure 5:
The another kind of division methods of centralized (localized) eCCE, centralized (localized) eCCE is divided into 4 eREG, and the RE of same numbers forms an eREG, can find out that the RE number that each eREG comprises is slightly different in Fig. 5.
Example three, as shown in Figure 6:
Centralized (localized) eCCE is divided into 3 eREG, and an eREG consists of a subcarrier, and the RE number that each eREG comprises is different.
Because distributing eCCE is distributed in 3 PRB pair, so and at present the transmission diversity of regulation be 2 antennas or 4 antennas can cause distributing eCCE can not with send diversity mode transmission (such as have 2 antenna ports can be used to transmit distributing still a distributing eCCE comprise 3 eREG, sending transmission means can not use), so have a solution for this situation, be exactly can be referring to Fig. 7.
Example four, as shown in Figure 7:
Centralized eCCE consists of 3 subcarriers, and distributing eCCE forms (subcarrier of same numbers forms a distributing eCCE) by 4 subcarriers that are distributed in 4 PRB, thereby can make distributing eCCE with sending diversity mode transmission.So be similarly divided into 4 eREG because of a centralized eCCE in Fig. 4 and Fig. 5, do not deposit above-mentioned problem.
Preferably, if distributing eCCE need to realize in a PRB pair, send diversity transmission, a subcarrier can also be divided into a plurality of time slots.2 antennas of take are example, if distributing eCCE need to realize in a PRB pair, send diversity transmission, and a subcarrier can be divided into two halves, time slot 0 half, time slot 1 half.Half sends with an antenna, and second half sends with another root antenna.
In Fig. 6, a distributing eCCE is distributed in 3 PRB pair, and in Fig. 7, a distributing eCCE is distributed in 4 PRB pair.Because the transmission diversity of stipulating is at present 2 antennas or 4 antennas, so distributing eCCE can be with sending diversity mode transmission in Fig. 7.Further a subcarrier is divided into two time slots and can in a PRB pair, also can adopts the transmission of transmission diversity mode.
Based on same inventive concept, a kind of equipment that transmits data is also provided in the embodiment of the present invention, because the principle that this equipment is dealt with problems is similar to the method for embodiment of the present invention transmission data, so the enforcement of this equipment can, referring to the enforcement of method, repeat part and repeat no more.
As shown in Figure 8, the equipment of embodiment of the present invention transmission data comprises: determination module 80 and processing module 81.
Processing module 81, for by the centralized eCCE or the distributing eCCE that determine, carries out ePDCCH transmission or reception & disposal;
Wherein, a PRB is to comprising N centralized eCCE, and described eCCE is multiplexing according to frequency division multiplexing mode, a described centralized eCCE comprises M eREG, a plurality of eREG that are distributed on different PRB pair that distributing eCCE is comprised by described centralized eCCE form, and N and M are positive integers.
Preferably, N=M=4.
Wherein, the RE number that each centralized eCCE comprises is identical or different.
If an eREG consists of a subcarrier, distributing eCCE forms by being distributed in X the subcarrier of the X in PRB pair; Wherein, X is positive integer.
Preferably, a subcarrier comprises at least two time slots and transmits according to sending diversity mode.
Wherein, a described centralized eCCE consists of Y subcarrier.
Preferably, X=4, Y=3.
The equipment of embodiment of the present invention transmission data can be subscriber equipment or network equipment.If the executive agent of the embodiment of the present invention is subscriber equipment, processing module 81 is carried out ePDCCH reception & disposal; If the executive agent of the embodiment of the present invention is network equipment, processing module 81 is carried out ePDCCH transmission process.
The equipment of embodiment of the present invention transmission data can also be applied in the system of transmission data, comprises subscriber equipment and network equipment.Subscriber equipment receives ePDCCH by centralized eCCE or the distributing eCCE determining after determining centralized eCCE and distributing eCCE; Network equipment sends ePDCCH by centralized eCCE or the distributing eCCE determining after determining centralized eCCE and distributing eCCE.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, implement software example or in conjunction with the form of the embodiment of software and hardware aspect completely.And the present invention can adopt the form that wherein includes the upper computer program of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code one or more.
The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be in computer program instructions realization flow figure and/or block diagram each flow process and/or the flow process in square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction of carrying out by the processor of computer or other programmable data processing device is produced for realizing the device in the function of flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame on computer or other programmable devices.
Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (14)
1. a method of transmitting data, is characterized in that, the method comprises:
Determine control channel unit eCCE and the distributing eCCE of centralized enhancing;
By the centralized eCCE or the distributing eCCE that determine, the Physical Downlink Control Channel ePDCCH strengthening transmission or reception & disposal;
Wherein, a Physical Resource Block comprises N centralized eCCE to PRB pair, and described eCCE is multiplexing according to frequency division multiplexing mode, a described centralized eCCE comprises M the resource unit group eREG strengthening, a plurality of eREG that are distributed on different PRB pair that distributing eCCE is comprised by described centralized eCCE form, and N and M are positive integers.
2. the method for claim 1, is characterized in that, N=M=4.
3. the method for claim 1, is characterized in that, the RE number that each centralized eCCE comprises is identical or different.
4. the method for claim 1, is characterized in that, if an eREG consists of a subcarrier, distributing eCCE forms by being distributed in X the subcarrier of the X in PRB pair;
Wherein, X is positive integer.
5. method as claimed in claim 4, is characterized in that, a subcarrier comprises at least two time slots and transmits according to sending diversity mode.
6. method as claimed in claim 4, is characterized in that, a described centralized eCCE consists of Y subcarrier.
7. method as claimed in claim 6, is characterized in that, X=4, Y=3.
8. an equipment that transmits data, is characterized in that, this equipment comprises:
Determination module, for determining control channel unit eCCE and the distributing eCCE of centralized enhancing;
Processing module, for centralized eCCE or the distributing eCCE that passes through to determine, the Physical Downlink Control Channel ePDCCH strengthening transmission or reception & disposal;
Wherein, a Physical Resource Block comprises N centralized eCCE to PRB pair, and described eCCE is multiplexing according to frequency division multiplexing mode, a described centralized eCCE comprises M the resource unit group eREG strengthening, a plurality of eREG that are distributed on different PRBpair that distributing eCCE is comprised by described centralized eCCE form, and N and M are positive integers.
9. device as claimed in claim 8, is characterized in that, N=M=4.
10. device as claimed in claim 8, is characterized in that, the RE number that each centralized eCCE comprises is identical or different.
11. devices as claimed in claim 8, is characterized in that, if an eREG consists of a subcarrier, distributing eCCE forms by being distributed in X the subcarrier of the X in PRB pair;
Wherein, X is positive integer.
12. devices as claimed in claim 11, is characterized in that, a subcarrier comprises at least two time slots and transmits according to sending diversity mode.
13. devices as claimed in claim 11, is characterized in that, a described centralized eCCE consists of Y subcarrier.
14. devices as claimed in claim 13, is characterized in that, X=4, Y=3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210270194.8A CN103582128A (en) | 2012-07-31 | 2012-07-31 | Method and equipment for transmitting data |
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| CN201210270194.8A CN103582128A (en) | 2012-07-31 | 2012-07-31 | Method and equipment for transmitting data |
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| CN103582128A true CN103582128A (en) | 2014-02-12 |
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| CN201210270194.8A Pending CN103582128A (en) | 2012-07-31 | 2012-07-31 | Method and equipment for transmitting data |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108886776A (en) * | 2016-03-25 | 2018-11-23 | 株式会社Ntt都科摩 | User terminal, wireless base station and wireless communications method |
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| US20120120891A1 (en) * | 2010-11-15 | 2012-05-17 | Futurewei Technologies, Inc. | System and Method for Resource Management in a Communications System |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20120120891A1 (en) * | 2010-11-15 | 2012-05-17 | Futurewei Technologies, Inc. | System and Method for Resource Management in a Communications System |
Non-Patent Citations (2)
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| FUJITSU: "Multiplexing of DCIs for localized and distributed ePDCCH", 《3GPP TSG RAN WG1 MEETING #68BIS》 * |
| NOKIA等: "Multiplexing of ePDCCH for different users", 《3GPP TSG RAN WG1 MEETING #68BIS》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108886776A (en) * | 2016-03-25 | 2018-11-23 | 株式会社Ntt都科摩 | User terminal, wireless base station and wireless communications method |
| CN108886776B (en) * | 2016-03-25 | 2023-05-02 | 株式会社Ntt都科摩 | Terminal, wireless communication system, and wireless communication method |
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