CN102256358B - Method, device and system for transmitting and receiving data - Google Patents
Method, device and system for transmitting and receiving data Download PDFInfo
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- CN102256358B CN102256358B CN2011101911997A CN201110191199A CN102256358B CN 102256358 B CN102256358 B CN 102256358B CN 2011101911997 A CN2011101911997 A CN 2011101911997A CN 201110191199 A CN201110191199 A CN 201110191199A CN 102256358 B CN102256358 B CN 102256358B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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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
Abstract
The invention discloses a method, device and system for transmitting and receiving data, relating to a communication technology. The method comprises the following steps of: partitioning a resource block pair into at least two sub-resource block pairs, carrying out resource distribution on an E-PDCCH (Evolved-Physical Downlink Control Channel) by the sub-resource block pairs as a unit, and transmitting each data by one or a plurality of sub-resource block pairs according to the sizes of the data and the sub-resource block pairs, so as to improve the data transmission efficiency.
Description
Technical field
The present invention relates to the communication technology, relate in particular to a kind of data transmission and reception method, Apparatus and system.
Background technology
At Long Term Evolution (long term evolution, LTE) in system, Physical Downlink Control Channel (physical downlink control channel, PDCCH) send in each wireless sub-frame, and with Physical Downlink Shared Channel (physical downlink shared channel, PDSCH) form time division multiplexing (time division multiplexing, TDM) multiplexing relation, as shown in Figure 1, control area is used for transmission PDCCH, and data area is used for transmission PDSCH.PDCCH is by top n OFDM (the orthogonal frequency division multiplexing of a descending sub frame, OFDM) symbol sends, wherein the value of N can be 1,2,3 or 4, and N=4 only allows to appear in the system that system bandwidth is 1.4MHz.
In the LTE system, the control area of transmission PDCCH is control channel unit (the control channel element by logical partitioning, CCE) form, wherein CCE is to RE(resource element, the least resource unit) mapping adopted the mode that interweaves fully.Downlink Control Information (downlink control information, DCI) it is unit that transmission also is based on CCE, for a subscriber equipment (user equipment, UE) a DCI can send in N continuous CCE, the possible value of N is 1,2,4 or 8 in the LTE system, is called CCE polymerization grade (Aggregation Level).
UE carries out the PDCCH blind check in control area, whether search exists the PDCCH for its transmission, wherein, blind check is specially: wireless network temporary indentification (the radio network temporary identifier that uses this UE, RNTI) to the trial of decoding of different DCI forms and CCE polymerization grade,, if decoding is correct, determines it is DCI for this UE, and receive.In the LTE system, UE each descending sub frame in discontinuous reception (discontinuous reception, DRX) state needs blind check is carried out in its control area, search PDCCH.
Due to multi-user's multiple-input and multiple-output (multi-user multiple input multiple output, MU-MIMO), coordinate multipoint (cooperative multiple points, CoMP), technology and the same cell identifier (identification such as carrier aggregation, ID) radio remote termination (remote radio head, RRH), the introducing of the configuration such as 8 antennas, at long-term evolution upgrading (long term evolution-advanced, LTE-A) in system, capacity and the efficiency of transmission of Physical Downlink Shared Channel are greatly improved; And with early stage LTE version (as version 8-9(release8-9, Rel-8/9)) compare, the performance of the Physical Downlink Control Channel of LTE-A system does not but get a promotion.
On the one hand, in the LTE-A system, the application of above-mentioned new technology makes the PDSCH can be simultaneously for more users provide transfer of data, and this will improve the demand to the PDCCH channel capacity greatly; On the other hand, the user-specific reference signal of applying in PDSCH (user-specific reference signal, UERS) relaying PDCCH(Relay-PDCCH, the R-PDCCH of application and in relay backhaul (Relay backhaul)) etc. new technology provide governed technology and experience for the enhancing of PDCCH.
Limited in order to solve the down control channel capacity, and the efficiency of transmission of raising Downlink Control Information, a solution is: send the PDCCH that strengthens in the PDSCH territory when keeping original PDCCH territory in descending sub frame.
as shown in Figure 2, original PDCCH still adopts in territory existing sending and receiving technology, use original PDCCH resource, taking top n OFDM symbol sends, wherein the possible value of N is 1, 2, 3, 4, and N=4 only allows to appear in the system that system bandwidth is 1.4MHz, this part PDCCH territory is called original PDCCH(legacy PDCCH) territory, as adopt while sending and send diversity, during reception based on cell-level reference signal (cell-specific reference signal, CRS) adopt the blind check technology, at public search space and user-specific search volume, DCI is carried out blind check.
More advanced sending and receiving technology can be used in the PDCCH territory that strengthens, as adopt precoding while sending, detect based on UERS during reception, taking legacy PDCCH territory running time-frequency resource in addition sends, use the part resource of original PDSCH, mode with PDSCH by frequency division realizes multiplexing, and this part PDCCH territory is called PDCCH(Enhanced PDCCH, the E-PDCCH of enhancing) territory.This Enhanced PDCCH and PDSCH realize that by the frequency division mode multiplexing scheme is called frequency division multiplexing (frequency division multiplexing, FDM) E-PDCCH.
And in FDM E-PDCCH scheme, every data in Enhanced PDCCH territory take at least 1 Physical Resource Block to (physical resource block pair, PRB pair, referred to as Resource Block to) resource.Take DCI as example, due to one side, the original bit number that each DCI the inside comprises is fewer, DCI form 1C(DCI format1C) be generally tens bits, larger DCI form also is no more than 60 bits as 2/2C, on the other hand, number of resources in each PRB pair is more, as shown in table 1, so while according to existing FDM E-PDCCH scheme, carrying out the DCI transmission, can cause frequency efficiency too low, thereby cause the waste of resource.
Each PRB pair of table 1 can be used for the RE number (regular circulation prefix (cyclic prefix, CP)) of E-PDCCH transmission
Summary of the invention
The embodiment of the present invention provides a kind of data transmission and reception method, Apparatus and system, to improve the efficiency of transmission of data.
A kind of data transmission method comprises:
Take the child resource piece to as the minimum resource allocation unit, for each data allocations resource in the Physical Downlink Control Channel E-PDCCH territory that strengthens, described child resource piece is to being specially: to after being divided into M part according to frequency domain, every part is a sub-Resource Block pair, described M 〉=2 with each Resource Block; When signal solution timing is carried out based on user-specific reference signal UERS in described E-PDCCH territory, described each child resource piece centering, include user-specific reference signal resource unit UERS RE; When described data were carried out precoding, the data-signal in described E-PDCCH territory was identical with the precoding granularity of described UERS, and least unit is child resource piece pair; Perhaps when described data are carried out precoding, in described E-PDCCH territory, the precoding granularity of data-signal is different from the precoding granularity of described UERS, in the E-PDCCH territory, the least unit of the precoding granularity of data-signal is child resource piece pair, the least unit of the precoding granularity of described UERS is Resource Block pair, and the UERS between same resource block centering different user distinguishes in multi-user's multiple-input and multiple-output MU-MIMO mode;
The transmitted over resources data of distributing.
A kind of data receive method comprises:
Determine the resource location of corresponding data, described resource comprises at least one child resource piece pair, and described child resource piece is to being specially: to after being divided into M part, every part is a sub-Resource Block pair, described M 〉=2 with each Resource Block; When signal solution timing is carried out based on user-specific reference signal UERS in the E-PDCCH territory, described each child resource piece centering, include user-specific reference signal resource unit UERS RE; When described data were carried out precoding, the data-signal in described E-PDCCH territory was identical with the precoding granularity of described UERS, and least unit is child resource piece pair; Perhaps when described data are carried out precoding, in described E-PDCCH territory, the precoding granularity of data-signal is different from the precoding granularity of described UERS, in the E-PDCCH territory, the least unit of the precoding granularity of data-signal is child resource piece pair, the least unit of the precoding granularity of described UERS is Resource Block pair, and the UERS between same resource block centering different user distinguishes in multi-user's multiple-input and multiple-output MU-MIMO mode;
Receive described data on described resource.
A kind of data transmission device comprises:
Resource allocation unit, be used for take the child resource piece as the minimum resource allocation unit, for each data allocations resource in the Physical Downlink Control Channel E-PDCCH territory that strengthens, described child resource piece is to being specially: with each Resource Block to after being divided into M part according to frequency domain, every part is a sub-Resource Block pair, described M 〉=2; When signal solution timing is carried out based on user-specific reference signal UERS in the E-PDCCH territory, described each child resource piece centering, include user-specific reference signal resource unit UERS RE; When described data were carried out precoding, the data-signal in described E-PDCCH territory was identical with the precoding granularity of described UERS, and least unit is child resource piece pair; Perhaps when described data are carried out precoding, in described E-PDCCH territory, the precoding granularity of data-signal is different from the precoding granularity of described UERS, in the E-PDCCH territory, the least unit of the precoding granularity of data-signal is child resource piece pair, the least unit of the precoding granularity of described UERS is Resource Block pair, and the UERS between same resource block centering different user distinguishes in multi-user's multiple-input and multiple-output MU-MIMO mode;
Transmission unit, be used for the transmitted over resources data of distributing.
A kind of data sink comprises:
Determining unit, for the resource location of determining corresponding data, described resource comprises at least one child resource piece pair, described child resource piece is to being specially: to after being divided into M part according to frequency domain, every part is a sub-Resource Block pair, described M 〉=2 with each Resource Block; When signal solution timing is carried out based on user-specific reference signal UERS in the E-PDCCH territory, described each child resource piece centering, include user-specific reference signal resource unit UERS RE; When described data were carried out precoding, the data-signal in described E-PDCCH territory was identical with the precoding granularity of described UERS, and least unit is child resource piece pair; Perhaps when described data are carried out precoding, in described E-PDCCH territory, the precoding granularity of data-signal is different from the precoding granularity of described UERS, in the E-PDCCH territory, the least unit of the precoding granularity of data-signal is child resource piece pair, the least unit of the precoding granularity of described UERS is Resource Block pair, and the UERS between same resource block centering different user distinguishes in multi-user's multiple-input and multiple-output MU-MIMO mode;
Receiving element, be used for receiving described data on described resource.
A kind of data transmission system comprises:
Transmitting terminal, be used for take the child resource piece as the minimum resource allocation unit, for each data allocations resource in the Physical Downlink Control Channel E-PDCCH territory that strengthens, and the transmitted over resources data of distributing, described child resource piece is to being specially: with each Resource Block to after being divided into M part according to frequency domain, every part is a sub-Resource Block pair, described M 〉=2; When signal solution timing is carried out based on user-specific reference signal UERS in the E-PDCCH territory, described each child resource piece centering, include user-specific reference signal resource unit UERSRE; When described data were carried out precoding, the data-signal in described E-PDCCH territory was identical with the precoding granularity of described UERS, and least unit is child resource piece pair; Perhaps when described data are carried out precoding, in described E-PDCCH territory, the precoding granularity of data-signal is different from the precoding granularity of described UERS, in the E-PDCCH territory, the least unit of the precoding granularity of data-signal is child resource piece pair, the least unit of the precoding granularity of described UERS is Resource Block pair, and the UERS between same resource block centering different user distinguishes in multi-user's multiple-input and multiple-output MU-MIMO mode;
Receiving terminal, be used for determining the resource location of corresponding data, and receive described data on described resource.
The embodiment of the present invention provides a kind of data transmission and reception method, Apparatus and system, by with Resource Block to being divided at least two sub-Resource Block pair, and take the child resource piece, the resource of carrying out the E-PDCCH territory as unit is distributed, according to data and the right size of child resource piece, each data, to transmission, and then improves the efficiency of transmission of data by one or more child resource pieces.
Description of drawings
Fig. 1 is the multiplexing schematic diagram that concerns of control area and data area in descending sub frame in prior art;
Fig. 2 is a kind of enhancing PDCCH structural representation of the prior art;
The data transmission method flow chart that Fig. 3 provides for the embodiment of the present invention;
The child resource piece that Fig. 4 provides for the embodiment of the present invention is to dividing schematic diagram;
The data receive method flow chart that Fig. 5 provides for the embodiment of the present invention;
The data transmission device structural representation that Fig. 6 provides for the embodiment of the present invention;
The data sink structural representation that Fig. 7 provides for the embodiment of the present invention;
The data transmission system structural representation that Fig. 8 provides for the embodiment of the present invention.
Embodiment
The embodiment of the present invention provides a kind of data transmission and reception method, Apparatus and system, by with Resource Block to being divided at least two sub-Resource Block pair, and take the child resource piece, the resource of carrying out the E-PDCCH territory as unit is distributed, according to data and the right size of child resource piece, each data, to transmission, and then improves the efficiency of transmission of data by one or more child resource pieces.
The embodiment of the present invention provides a kind of data transmission method, and as shown in Figure 3, the method comprises:
Step S301, take the child resource piece to as the minimum resource allocation unit, be each data allocations resource in the E-PDCCH territory, wherein, the child resource piece is to being specially: to after being divided into M part, every part of Resource Block is to being a sub-Resource Block pair, M 〉=2 with each Resource Block;
Step S302, the transmitted over resources data of distributing.
as shown in Figure 4, each PRB pair is divided into a plurality of child resource pieces to (subRB pair) according to frequency domain, divide timing carrying out resource, can use the resource allocation unit of subRB pair as minimum, like this when transmitting shorter data, do not need to expend whole PRB pair and realize the transmission of these data, only need a subRB pair can realize the transmission of these data, and for long data, also can use a plurality of subRB pair to realize transmission, because the resource allocation unit of minimum is less, so still reduced the resource that these data take, improved data transmission efficiency, in Fig. 4, oblique line is partly the original PDCCH Resource Unit of Legacy PDCCH RE(), meshing is UERS RE(user-specific reference signal resource unit).
For example, when these data are DCI,, because the bit number that comprises in DCI is less, when using subRBpair as the resource allocation unit of minimum, can realize transmitting DCI by less resource, and then improve the efficiency of transmission of DCI.
In embodiments of the present invention, take data as DCI, describe, DCI can be replaced with other categorical data when those skilled in the art apply and apply.
Like this, after the part subRB pair in a PRB pair distributed to the DCI of a receiving terminal, other subRB pair can also distribute to other user's DCI, perhaps distributed to PDSCH.
Equally, receiving terminal after receiving data, need to carry out take subRB pair as least resource unit blind check, thereby obtain corresponding DCI.
Certainly, transmitting terminal also can take the child resource piece to as the minimum resource allocation unit, after each data allocations resource in the E-PDCCH territory, the positional information of its corresponding E-PDCCH resource of notice receiving terminal, like this, receiving terminal can be determined according to the positional information that receives the resource location of its corresponding data, thereby does not carry out blind check or reduce the blind check number of times, thereby reduces the complexity that receiving terminal is processed.
For example, if transmitting terminal is after carrying out the resource distribution, directly the shared subRB pair sign of the data that each receiving terminal is corresponding sends to each receiving terminal, and each receiving terminal directly can be determined the resource location at the data place that it is corresponding according to subRB pair sign, need not to carry out blind check.If transmitting terminal is after carrying out the resource distribution, the shared PRB pair sign of the data that each receiving terminal is corresponding sends to each receiving terminal, each receiving terminal directly can be determined the PRB pair at the data place that it is corresponding according to PRB pair sign, carry out blind check in this PRB pair scope and get final product.
When PRB pair is divided, can divide according to the empirical value of size of data, also can divide according to Else Rule, for the ease of subRB pair is managed, can be according to frequency domain with each Resource Block on average being divided into M part.
Identical with the PDSCH territory, in the E-PDCCH territory, can pass through CSI-RS(channel state information reference signal, channel state information reference signals) or CRS carry out channel measurement, carry out demodulation based on UERS or CRS, if need to carry out demodulation based on UERS, in each subRB pair, include UERS RE, thereby be convenient to receiving terminal, according to UERS, carry out demodulation.
Generally, in conventional CP situation, each PRB pair comprises 12 UERS RE, and every 4 UERS RE are positioned on same frequency, determines that M=3 can guarantee in each subRB pair to include 4 UERS RE; In expansion CP situation, each PRB pair comprises 16 UERS RE, every 4 UERS RE are positioned on same frequency, determine that M=4 can guarantee in each subRB pair to include 4 UERS RE, determine that perhaps M=2 can guarantee in each subRB pair to include 8 UERSRE.
Conciliate timing when in the E-PDCCH territory, by CRS, carrying out channel measurement, owing to not needing to use UERS RE, so when PRB pair is divided, do not need to consider reference signal (referenc signal, RS) impact, as long as determine according to actual needs the size of subRB pair.
When carrying out precoding, can carry out take subRB pair as least unit precoding, namely the least unit of precoding granularity is subRB pair.Such as, be only that the DCI that transmits has distributed a subRB pair, in E-PDCCH the precoding granularity of the data that pass and UERS be a subRB pair; Distributed and surpassed a subRB pair by transmitting DCI, in E-PDCCH the precoding granularity of the data that pass and UERS can be a subRB pair, also can be a plurality of subRB pair, but be no more than at most the number of subRB pair distribution.
But, separating timing based on UERS, for making receiving terminal to carry out channel estimating by more UERS RE, in the E-PDCCH territory, the precoding granularity of data-signal can be different from the precoding granularity of described UERS, such as, in the E-PDCCH territory, the least unit of the precoding granularity of data-signal is child resource piece pair, the least unit of the precoding granularity of UERS RE is Resource Block pair, and the UERS between same resource block centering different user distinguishes in multi-user's multiple-input and multiple-output MU-MIMO mode.Such as, comprise 3 subPRB pair in a PRB pair, each subPRB pair distributes to a user's DCI transmission, in this PRB pair, the precoding granularity of the transmission of DCI is 1 subRB pair, the precoding granularity of UERS in PRB pair is 1 PRB pair,, if each user's UERS is overlapping on running time-frequency resource, adopt the mode of MU-MIMO to distinguish.
The embodiment of the present invention also provides a kind of data receive method, and as shown in Figure 5, the method comprises:
Step S501, determine the resource location of corresponding data, this resource comprises at least one child resource piece pair, and wherein, the child resource piece is to being specially: with each Resource Block to after being divided into M part according to frequency domain, every part of Resource Block is to being a sub-Resource Block pair, M 〉=2;
Step S502, receive data on determined resource.
In step S501,, according to different stipulated forms, determine the resource location of corresponding data, specifically comprise following three kinds:
The positional information of the E-PDCCH resource of the correspondence that receiving end/sending end sends, and determine the resource location of corresponding data according to positional information; Perhaps
According to the right number of child resource piece that known described resource comprises, suppose that perhaps the right number of child resource piece that described resource comprises carries out blind check, determine that the child resource piece of corresponding data is to position; Perhaps
The positional information of the E-PDCCH resource of the correspondence that receiving end/sending end sends, and determine the scope at the resource place of corresponding data according to positional information, the right number of child resource piece that comprises according to known described resource, perhaps suppose the right number of child resource piece that described resource comprises, scope at the resource place is carried out blind check, determines the resource location of corresponding data.
Accordingly, the embodiment of the present invention also provides a kind of data transmission device, and this device can be specially for the transmitting terminal that sends data, and as shown in Figure 6, this device comprises:
Know the positional information of the E-PDCCH resource that it is corresponding for the ease of receiving terminal, avoid it carry out blind check or reduce the blind check scope, also comprise in this data transmission device:
Notification unit, the positional information of its corresponding E-PDCCH resource of notice receiving terminal.
The embodiment of the present invention also provides a kind of data sink, and this device can be specially for the receiving terminal that receives data, and as shown in Figure 7, this device comprises:
Determining unit 701, for the resource location of determining corresponding data, this resource comprises at least one child resource piece pair, wherein, the child resource piece is to being specially: to after being divided into M part according to frequency domain, every part of Resource Block is to being a sub-Resource Block pair, M 〉=2 with each Resource Block;
Receiving element 702, be used for receiving data on determined resource.
To the location positioning mode, determining unit 701 specifically is used for according to the child resource piece of predefined corresponding data:
The positional information of the E-PDCCH resource of the correspondence that receiving end/sending end sends, and according to positional information, determine that the child resource piece of corresponding data is to position; Perhaps
According to the right number of child resource piece that known described resource comprises, suppose that perhaps the right number of child resource piece that described resource comprises carries out blind check, determine the resource location of corresponding data; Perhaps
The positional information of the E-PDCCH resource of the correspondence that receiving end/sending end sends, and according to positional information, determine the scope of the resource of corresponding data to place, the child resource piece that comprises according to known described resource is to number, perhaps suppose the right number of child resource piece that described resource comprises, scope at the resource place is carried out blind check, determines the resource location of corresponding data.
The embodiment of the present invention also provides a kind of data transmission system, and as shown in Figure 8, this system comprises:
Transmitting terminal 801, be used for take the child resource piece as the minimum resource allocation unit, for each data allocations resource in the E-PDCCH territory, and the transmitted over resources data of distributing, the child resource piece is to being specially: with each Resource Block to after being divided into M part according to frequency domain, every part of Resource Block is to being a sub-Resource Block pair, M 〉=2;
Receiving terminal 802, be used for determining the resource location of corresponding data, and receive data on determined resource.
The embodiment of the present invention provides a kind of data transmission and reception method, Apparatus and system, by with Resource Block to being divided at least two sub-Resource Block pair, and take the child resource piece, the resource of carrying out the E-PDCCH territory as unit is distributed, according to data and the right size of child resource piece, each data, to transmission, and then improves the efficiency of transmission of data by one or more child resource pieces.
Obviously, those skilled in the art can carry out various changes and modification and not break away 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 also is intended to comprise these changes and modification interior.
Claims (13)
1. a data transmission method, is characterized in that, comprising:
Take the child resource piece to as the minimum resource allocation unit, for each data allocations resource in the Physical Downlink Control Channel E-PDCCH territory that strengthens, described child resource piece is to being specially: to after being divided into M part according to frequency domain, every part is a sub-Resource Block pair, described M 〉=2 with each Resource Block; When signal solution timing is carried out based on user-specific reference signal UERS in described E-PDCCH territory, described each child resource piece centering, include user-specific reference signal resource unit UERS RE; When described data were carried out precoding, the data-signal in described E-PDCCH territory was identical with the precoding granularity of described UERS, and least unit is child resource piece pair; Perhaps when described data are carried out precoding, in described E-PDCCH territory, the precoding granularity of data-signal is different from the precoding granularity of described UERS, in the E-PDCCH territory, the least unit of the precoding granularity of data-signal is child resource piece pair, the least unit of the precoding granularity of described UERS is Resource Block pair, and the UERS between same resource block centering different user distinguishes in multi-user's multiple-input and multiple-output MU-MIMO mode;
The transmitted over resources data of distributing.
2. the method for claim 1, is characterized in that, described data are specially Downlink Control Information DCI.
3. the method for claim 1, is characterized in that, described take the child resource piece to as the minimum resource allocation unit, after each data allocations resource in the E-PDCCH territory, also comprise:
The positional information of its corresponding E-PDCCH resource of notice receiving terminal.
4. the method for claim 1, is characterized in that, described with each Resource Block to be divided into M part according to frequency domain, be specially:
According to frequency domain with each Resource Block on average being divided into M part.
5. method as described in claim 1 or 4, is characterized in that, in regular circulation prefix CP situation, and described M=3, in expansion CP situation, described M=4 or described M=2.
6. method as claimed in claim 4, is characterized in that, signal solution timing is carried out based on cell-level reference signal CRS in described E-PDCCH territory, and in described E-PDCCH territory, the least unit of the precoding granularity of data-signal is child resource piece pair.
7. a data receive method, is characterized in that, comprising:
Determine the resource location of corresponding data, described resource comprises at least one child resource piece pair, and described child resource piece is to being specially: to after being divided into M part, every part is a sub-Resource Block pair, described M 〉=2 with each Resource Block; When signal solution timing is carried out based on user-specific reference signal UERS in the E-PDCCH territory, described each child resource piece centering, include user-specific reference signal resource unit UERS RE; When described data were carried out precoding, the data-signal in described E-PDCCH territory was identical with the precoding granularity of described UERS, and least unit is child resource piece pair; Perhaps when described data are carried out precoding, in described E-PDCCH territory, the precoding granularity of data-signal is different from the precoding granularity of described UERS, in the E-PDCCH territory, the least unit of the precoding granularity of data-signal is child resource piece pair, the least unit of the precoding granularity of described UERS is Resource Block pair, and the UERS between same resource block centering different user distinguishes in multi-user's multiple-input and multiple-output MU-MIMO mode;
Receive described data on described resource.
8. method as claimed in claim 7, is characterized in that, the described resource location of determining corresponding data specifically comprises:
The positional information of the Physical Downlink Control Channel E-PDCCH resource of the enhancing of the correspondence that receiving end/sending end sends, and determine the resource location of corresponding data according to described positional information; Perhaps
According to the right number of child resource piece that known described resource comprises, suppose that perhaps the right number of child resource piece that described resource comprises carries out blind check, determine the resource location of corresponding data; Perhaps
The positional information of the E-PDCCH resource of the correspondence that receiving end/sending end sends, and determine the scope at the resource place of corresponding data according to described positional information, the right number of child resource piece that comprises according to known described resource, perhaps suppose the right number of child resource piece that described resource comprises, scope at described resource place is carried out blind check, determines the resource location of corresponding data.
9. a data transmission device, is characterized in that, comprising:
Resource allocation unit, be used for take the child resource piece as the minimum resource allocation unit, for each data allocations resource in the Physical Downlink Control Channel E-PDCCH territory that strengthens, described child resource piece is to being specially: with each Resource Block to after being divided into M part according to frequency domain, every part is a sub-Resource Block pair, described M 〉=2; When signal solution timing is carried out based on user-specific reference signal UERS in described E-PDCCH territory, described each child resource piece centering, include user-specific reference signal resource unit UERS RE; When described data were carried out precoding, the data-signal in described E-PDCCH territory was identical with the precoding granularity of described UERS, and least unit is child resource piece pair; Perhaps when described data are carried out precoding, in described E-PDCCH territory, the precoding granularity of data-signal is different from the precoding granularity of described UERS, in the E-PDCCH territory, the least unit of the precoding granularity of data-signal is child resource piece pair, the least unit of the precoding granularity of described UERS is Resource Block pair, and the UERS between same resource block centering different user distinguishes in multi-user's multiple-input and multiple-output MU-MIMO mode;
Transmission unit, be used for the transmitted over resources data of distributing.
10. device as claimed in claim 9, is characterized in that, also comprises:
Notification unit, for the positional information of its corresponding E-PDCCH resource of notice receiving terminal.
11. a data sink, is characterized in that, comprising:
Determining unit, for the resource location of determining corresponding data, described resource comprises at least one child resource piece pair, described child resource piece is to being specially: to after being divided into M part according to frequency domain, every part is a sub-Resource Block pair, described M 〉=2 with each Resource Block; When signal solution timing is carried out based on user-specific reference signal UERS in the E-PDCCH territory, described each child resource piece centering, include user-specific reference signal resource unit UERS RE; When described data were carried out precoding, the data-signal in described E-PDCCH territory was identical with the precoding granularity of described UERS, and least unit is child resource piece pair; Perhaps when described data are carried out precoding, in described E-PDCCH territory, the precoding granularity of data-signal is different from the precoding granularity of described UERS, in the E-PDCCH territory, the least unit of the precoding granularity of data-signal is child resource piece pair, the least unit of the precoding granularity of described UERS is Resource Block pair, and the UERS between same resource block centering different user distinguishes in multi-user's multiple-input and multiple-output MU-MIMO mode;
Receiving element, be used for receiving described data on described resource.
12. device as claimed in claim 11, is characterized in that, described determining unit specifically is used for:
The positional information of the Physical Downlink Control Channel E-PDCCH resource of the enhancing of the correspondence that receiving end/sending end sends, and determine the resource location of corresponding data according to described positional information; Perhaps
According to the right number of child resource piece that known described resource comprises, suppose that perhaps the right number of child resource piece that described resource comprises carries out blind check, determine the resource location of corresponding data; Perhaps
The positional information of the E-PDCCH resource of the correspondence that receiving end/sending end sends, and determine the scope at the resource place of corresponding data according to described positional information, the right number of child resource piece that comprises according to known described resource, perhaps suppose the right number of child resource piece that described resource comprises, scope at described resource place is carried out blind check, determines the resource location of corresponding data.
13. a data transmission system, is characterized in that, comprising:
Transmitting terminal, be used for take the child resource piece as the minimum resource allocation unit, for each data allocations resource in the Physical Downlink Control Channel E-PDCCH territory that strengthens, and the transmitted over resources data of distributing, described child resource piece is to being specially: with each Resource Block to after being divided into M part according to frequency domain, every part is a sub-Resource Block pair, described M 〉=2; When signal solution timing is carried out based on user-specific reference signal UERS in described E-PDCCH territory, described each child resource piece centering, include user-specific reference signal resource unit UERSRE; When described data were carried out precoding, the data-signal in described E-PDCCH territory was identical with the precoding granularity of described UERS, and least unit is child resource piece pair; Perhaps when described data are carried out precoding, in described E-PDCCH territory, the precoding granularity of data-signal is different from the precoding granularity of described UERS, in the E-PDCCH territory, the least unit of the precoding granularity of data-signal is child resource piece pair, the least unit of the precoding granularity of described UERS is Resource Block pair, and the UERS between same resource block centering different user distinguishes in multi-user's multiple-input and multiple-output MU-MIMO mode;
Receiving terminal, be used for determining the resource location of corresponding data, and receive described data on described resource.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101911997A CN102256358B (en) | 2011-07-08 | 2011-07-08 | Method, device and system for transmitting and receiving data |
| PCT/CN2012/077312 WO2013007144A1 (en) | 2011-07-08 | 2012-06-21 | Method, device and system for transmitting and receiving data |
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| CN2011101911997A CN102256358B (en) | 2011-07-08 | 2011-07-08 | Method, device and system for transmitting and receiving data |
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| CN102256358B true CN102256358B (en) | 2013-11-20 |
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| CN106788929B (en) * | 2012-01-09 | 2020-01-17 | 华为技术有限公司 | Control channel resource mapping method, base station and user equipment |
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| CN103312396B (en) * | 2012-03-15 | 2018-05-11 | 中兴通讯股份有限公司 | The method of MIMO precodings and base station |
| JP6399728B2 (en) * | 2012-03-15 | 2018-10-03 | シャープ株式会社 | Base station apparatus, terminal apparatus, communication method, and integrated circuit |
| US9055578B2 (en) | 2012-03-15 | 2015-06-09 | Futurewei Technologies, Inc. | Systems and methods for UE-specific search space and ePDCCH scrambling |
| WO2013139011A1 (en) * | 2012-03-21 | 2013-09-26 | 富士通株式会社 | Method and device for mapping search space of downlink control channel |
| CN103326839B (en) * | 2012-03-22 | 2016-12-07 | 华为技术有限公司 | The sending, receiving method of the Physical Downlink Control Channel strengthened and device |
| CN104365049B (en) * | 2012-04-12 | 2017-09-22 | 诺基亚技术有限公司 | The communication means and device of transmission diversity in the control channel under without additional reference signal |
| CN110266458B (en) * | 2012-05-18 | 2022-07-12 | 索尼公司 | Communication apparatus and communication method in wireless communication system |
| WO2014019172A1 (en) * | 2012-08-01 | 2014-02-06 | 华为技术有限公司 | Method for sending enhanced physical downlink control channel (epdcch), base station, and terminal |
| CN103580837B (en) * | 2012-08-03 | 2019-01-22 | 中兴通讯股份有限公司 | Control signaling transmission, detection method and base station and terminal |
| WO2014032294A1 (en) * | 2012-08-31 | 2014-03-06 | 华为终端有限公司 | Method and device for allocating downlink control channel resources |
| CN104303576B (en) * | 2013-03-29 | 2018-10-30 | 华为技术有限公司 | Method and apparatus for transmission |
| CN104104472B (en) * | 2013-04-10 | 2019-05-21 | 中兴通讯股份有限公司 | Method, base station and the UE of channel continuity after a kind of guarantee precoding |
| CN107005998B (en) * | 2014-12-12 | 2019-11-29 | 华为技术有限公司 | Method, base station and the user equipment of data transmission |
| BR112019012387A2 (en) * | 2016-12-19 | 2020-02-27 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | INFORMATION TRANSMISSION METHOD, NETWORK DEVICE, AND TERMINAL DEVICE |
| CN108631985B (en) * | 2017-03-24 | 2023-01-24 | 中兴通讯股份有限公司 | Information transmission method, terminal and base station |
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| KR102462432B1 (en) * | 2017-08-10 | 2022-11-01 | 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 | Wireless communication method, network device and terminal device |
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| CN102256358A (en) | 2011-11-23 |
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