CN102638295A - Coordination control information distributing and data sending method, device and system - Google Patents

Coordination control information distributing and data sending method, device and system Download PDF

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CN102638295A
CN102638295A CN2011100368467A CN201110036846A CN102638295A CN 102638295 A CN102638295 A CN 102638295A CN 2011100368467 A CN2011100368467 A CN 2011100368467A CN 201110036846 A CN201110036846 A CN 201110036846A CN 102638295 A CN102638295 A CN 102638295A
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data
control information
information
sequence
cooperation control
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潘成康
王启星
刘建军
刘光毅
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China Mobile Communications Group Co Ltd
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China Mobile Communications Group Co Ltd
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Priority to CN2011100368467A priority Critical patent/CN102638295A/en
Priority to PCT/CN2012/071009 priority patent/WO2012106994A1/en
Publication of CN102638295A publication Critical patent/CN102638295A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems

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Abstract

The invention discloses a coordination control information distributing and data sending method, device and system. The method comprises the following steps of: ensuring coordination control information needed for processing and sending data before the data are sent to user equipment (UE); distributing the coordination control formation to each coordination district which is used for performing downstream coordination multipoint transmission on the data; receiving the coordination control information by each coordination district; processing the data needing the downstream coordination multipoint transmission according to the coordination control information; and sending the processed data to the UE by virtue of physical resources indicated by the coordination control information. According to the scheme provided by the embodiment of the invention, control parameters needed for processing the data are distributed among the coordination districts, and the transparent downstream coordination multipoint transmission on the data is realized.

Description

Cooperation control information transmission, data transmission method for uplink, Apparatus and system
Technical field
The present invention relates to the down collaboration multiple spot CoMP transmission technology in the wireless communication technology field, relate in particular to a kind of cooperation control information transmission, data transmission method for uplink, Apparatus and system.
Background technology
Descending CoMP transmission is following one of the version emphasis consideration technology that strengthens of LTE, and joint transmission then is important implementation of descending CoMP transmission.In the joint transmission scheme, a plurality of cooperation cell (comprising Serving cell) are carried out combined coding to the data of the user equipment (UE) of Serving cell administration, on same physics time, together send then.Existing for compatible LTE or formulating standard; In descending CoMP transmission course; The data that do not increase the current transmission of extra signaling UE are CoMP transmission states, and UE will receive data according to non-CoMP scheme fully, promptly from UE one side; The CoMP transmission equivalence of a plurality of cooperation cell is the non-CoMP transmission in single sub-district, and this promptly is the transparent transmission pattern.Transparent transmission makes does not have the standardization requirement to UE, need not improve existing UE.Realize that transparent transmission needs following two conditions:
All cooperation cell (comprising Serving cell) shared data;
All cooperation cell (comprising Serving cell) are carried out identical processing to data.
Wherein, Before sending the data to UE; Need carry out a series of processing operation to sent data; For example, in existing Rel.8/9/10 standard clearly the definition processing operation that needs to carry out comprise: chnnel coding, scrambling, modulation, generation demodulated reference signal DM-RS, precoding and physical resource shine upon; Need the control corresponding parameter when carrying out this a series of processing operation; For example; In the Rel.8/9/10 standard, handle operation and defined the control corresponding parameter for these, as code word number, be used for each code word Channel Modulation and coding Modulation and Coding Scheme MCS, be used for precoding the precoding coefficient, be used for the physical resource mapping Resource Allocation Formula (comprising resource allocation type, quantity and resource location), be used for the relevant parameter that scramble sequence generates and be used for the relevant parameter that the DM-RS sequence generates.
In order to realize transparent transmission, all cooperation cell must be known these Control Parameter, so that carry out identical processing operation to sent data.Yet, also there is not clear and definite method in the prior art, realize the distribution of above-mentioned Control Parameter between each cooperation cell with mutual, and then can't realize to sent the transparent transmission of the down collaboration multiple spot of data.
Summary of the invention
The embodiment of the invention provides a kind of cooperation control information transmission, data transmission method for uplink, Apparatus and system, in order to realize that the data that send to UE are handled the distribution of needed Control Parameter between each cooperation cell.
The embodiment of the invention provides a kind of cooperation control information sending method, comprising:
Before sending data to user equipment (UE), confirm to be used for needed cooperation control information is handled and sent to said data;
Said cooperation control information is sent to each cooperation cell of said data being carried out the down collaboration multicast communication.
The embodiment of the invention also provides a kind of data transmission method for uplink, comprising:
Each cooperation cell of carrying out the down collaboration multicast communication receives the cooperation control information; And
According to said cooperation control information, needs are carried out the data of down collaboration multicast communication and handle;
Use the physical resource of said cooperation control information indication, send the data after handling to user equipment (UE).
The embodiment of the invention also provides a kind of cooperation control information dispensing device, comprising:
Confirm the unit, be used for before sending data to user equipment (UE), confirm to be used for needed cooperation control information is handled and sent to said data;
First transmitting element is used for said cooperation control information is sent to each cooperation cell of said data being carried out the down collaboration multicast communication.
The embodiment of the invention also provides the data sending device in a kind of cooperation cell, comprising:
Receiving element is used for receiving the cooperation control information;
Processing unit is used for needs being carried out the data of down collaboration multicast communication and handling according to said cooperation control information;
Second transmitting element is used to use the physical resource of said cooperation control information indication, sends the data after handling to user equipment (UE).
The embodiment of the invention also provides a kind of data Transmission system, comprising: the data sending device in cooperation control information dispensing device and each cooperation cell of carrying out the down collaboration multicast communication, wherein:
Said cooperation control information dispensing device was used for before sending data to user equipment (UE), confirmed to be used for needed cooperation control information is handled and sent to said data; And said cooperation control information sent to said each cooperation cell;
Said data sending device is used to receive said cooperation control information; And, needs are carried out the data of down collaboration multicast communication and handle according to said cooperation control information; And the physical resource that uses said cooperation control information indication, send the data after handling to said UE.
In the method that the embodiment of the invention provides; Before sending data to UE; At first determine and be used for needed cooperation control information is handled and sent to data; And the cooperation control information that will confirm sends to each cooperation cell of these data being carried out the down collaboration multicast communication, thereby realized data are handled the distribution of needed Control Parameter between each cooperation cell; And; After each cooperation cell receives this cooperation control information, data are handled the data after obtaining handling according to this cooperation control information; And use the physical resource of this cooperation control information indication to send the data after handling to UE; Thereby realized that all cooperation cell carry out identical processing to data, and the data after will handling send to UE, and then realized transparent transmission the down collaboration multiple spot of data.
Description of drawings
The flow chart of the cooperation control information sending method that Fig. 1 provides for the embodiment of the invention;
The flow chart of the data transmission method for uplink that Fig. 2 provides for the embodiment of the invention;
The flow chart of the cooperation control information sending method that Fig. 3 provides for the embodiment of the invention 1;
The flow chart of the data transmission method for uplink that Fig. 4 provides for the embodiment of the invention 2;
The flow chart of the data transmission method for uplink that Fig. 5 provides for the embodiment of the invention 3;
The structural representation of the cooperation control information dispensing device that Fig. 6 provides for the embodiment of the invention 4;
The structural representation of the data sending device in the cooperation cell that Fig. 7 provides for the embodiment of the invention 5;
The structural representation of the data Transmission system that Fig. 8 provides for the embodiment of the invention 6.
Embodiment
The data that send to UE are handled needed Control Parameter between each cooperation cell, distribute in order to provide realization; And realization is to the scheme of the transparent transmission of the down collaboration multiple spot of data; The embodiment of the invention provides a kind of cooperation control information transmission, data transmission method for uplink, Apparatus and system; Below in conjunction with Figure of description the preferred embodiments of the present invention are described; Should be appreciated that preferred embodiment described herein only is used for explanation and explains the present invention, and be not used in qualification the present invention.And under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
The embodiment of the invention provides a kind of cooperation control information sending method, and is as shown in Figure 1, comprising:
Step S101, before sending data to user equipment (UE), confirm to be used for needed cooperation control information is handled and sent to data.
Step S102, the control information of will cooperating send to each cooperation cell of data being carried out the down collaboration multicast communication.
The embodiment of the invention also provides a kind of data transmission method for uplink, and is as shown in Figure 2, comprising:
Step S201, each cooperation cell of carrying out the down collaboration multicast communication receive cooperation control information.
Step S202, according to the cooperation control information, needs are carried out the data of down collaboration multicast communication and handle.
Step S203, the physical resource that uses the cooperation control information to indicate send the data after handling to UE.
Below in conjunction with accompanying drawing, method provided by the invention and device and corresponding system are described in detail with specific embodiment.
Embodiment 1:
Under the non-CoMP transmission mode of LTE; Have only the Serving cell of UE that the data that needs send to UE are comprised chnnel coding, scrambling, modulation, generation DM-RS, precoding and the operation of physical resource mapping treatment, relevant Control Parameter also is to be confirmed by Serving cell.So, a kind of logic control entity CoMP processing unit is proposed in the embodiment of the invention, be used for confirming above-mentioned Protocol Control Information and sending to each cooperation cell; Specifically can it be integrated in Serving cell, be used to carry out above-mentioned cooperation control information sending method, promptly confirm each relevant Control Parameter; And send to other each cooperation cell, but this can take a large amount of computational resource of Serving cell, reduces the performance of Serving cell; So, also can this CoMP processing unit be integrated in a sub-district in each cooperation cell, or not be integrated in any cooperation cell; But independent the setting is used for the down collaboration multicast communication to the data of each cooperation cell.
Be that independent what be provided with is example with this CoMP processing unit below, above-mentioned cooperation control information sending method is described in detail, as shown in Figure 3, comprising:
In step S301, the present embodiment 1; The control information that is specifically comprised for above-mentioned cooperation control information; According at present data being handled needed control information is example; When the data of needs processing were source data, the cooperation control information can comprise: scrambling instruction information, Modulation and Coding Scheme indication information, DM-RS sequence indication, precoding indication information and Resource Allocation Formula indication information;
When data that needs are handled be that the cooperation control information that sends to the Serving cell of UE comprises: Modulation and Coding Scheme indication information, DM-RS sequence indication, precoding indication information and Resource Allocation Formula indication information when source data being encoded data after the scrambling process; The cooperation control information that sends to other each cooperation cell except that the service sub-district can comprise: modulation scheme indication information, DM-RS sequence indication, precoding indication information and Resource Allocation Formula indication information.
Wherein, Scrambling instruction information is used for data are carried out scrambling; The Modulation and Coding Scheme indication information is used for data are encoded and modulated; The DM-RS sequence indication is used to generate the DM-RS sequence, and the precoding indication information is used for data and DM-RS sequence are carried out precoding, and the Resource Allocation Formula indication information is used to indicate the physical resource that sends data and DM-RS sequence.
Further, scrambling instruction information specifically comprises: corresponding code word 0 or 1 q value information;
The Modulation and Coding Scheme indication information comprises: modulation coding mode indication information and transmission block are to the code word mapped identification;
The modulation scheme indication information comprises: modulation system indication information and transmission block are to the code word mapped identification;
The DM-RS sequence indication comprises: DM-RS sequence scrambling ID;
The precoding indication information comprises: the precoding coefficient;
The Resource Allocation Formula indication information comprises: resource allocation type identification and resource frequency domain position information.
And; When data being handled resource needed time-domain position information (like timeslot number) and are the assigned timeslot in the radio frames of fixing; Can not comprise resource time-domain position information in the above-mentioned cooperation control information; But when resource time-domain position information is not a certain assigned timeslot in the radio frames of fixing; Also comprise resource time-domain position information in the above-mentioned cooperation control information, promptly corresponding, scrambling instruction information, DM-RS sequence indication and Resource Allocation Formula indication information all also comprise resource time-domain position information.
For different cooperation cell; When data are handled in the needed control information; Above-mentioned scrambling instruction information, Modulation and Coding Scheme indication information, demodulated reference signal DM-RS sequence indication and Resource Allocation Formula indication information all are identical, and having only the precoding indication information is different for different cooperation cell.
So the precoding coefficient in the above-mentioned cooperation control information specifically can adopt following dual mode:
First kind of mode: comprised the corresponding respectively precoding coefficient of all each cooperation cell, cooperation cell can be obtained the precoding coefficient corresponding with self from the cooperation control information;
The second way: the cooperation control information to different cooperation cell is sent is different, and difference only is that the precoding coefficient is different, only comprises the corresponding precoding coefficient of cooperation cell that receives this cooperation control information in the control information of promptly cooperating.
When confirming the cooperation control information; Need obtain some parameter informations, in the present embodiment 1, the CoMP processing unit receives the parameter information that is used for confirming the cooperation control information that each cooperation cell is sent; Each control information to specifically comprising in the above-mentioned cooperation control information is described below respectively:
Corresponding code word 0 or 1 q value information: when the data of sending only use a transmission block to send; Then only use a code word passage (code word 0 passage) it is encoded and to modulate; When the data of sending need use two transmission blocks to send, except that code word 0 passage, also use another code word passage (code word 1 passage) it is encoded and to modulate; Then corresponding with code word 0 passage q value is 0, and the q value corresponding with code word 1 passage is 1.
So, in the present embodiment 1, can send to the CoMP processing unit by the quantity information that Serving cell will send the transmission block that data use, also can after determining the q value information, directly the q value information of confirming be sent to the CoMP processing unit.
Modulation coding mode or modulation system: when definite modulation coding mode or modulation system; Need to consider the channel condition information of each cooperation cell; So parameters needed information sends to the CoMP processing unit by each cooperation cell; According to the parameter information that receives from each cooperation cell, adopt definite algorithm of setting to confirm by the CoMP processing unit.
Transmission block is to the code word mapped identification: when only using a transmission block to send data; This transmission block and code word 0 mapping; I.e. sign use code word 0 passage is encoded to the data of this transmission block and is modulated; When using two transmission blocks to send data, two transmission blocks respectively with code word 0 and 1 mapping, promptly characterize use code word 0 and 1 passage pair and encode with the data of the transmission block of its mapping and modulate; Specifically can determine transmission block after the code word mapping result by Serving cell, the transmission block that directly will characterize mapping result sends to the CoMP processing unit to the code word mapped identification; Also can be with confirming that mapping result parameters needed information sends to the CoMP processing unit, is confirmed by the CoMP processing unit.
DM-RS sequence scrambling ID: be the sequence scrambling ID that is associated with the PDSCH Channel Transmission, possible value is 0 or 1, and this information directly sends to the CoMP processing unit after can being confirmed by Serving cell.
Resource Allocation Formula indication information: because included resource allocation type identification, resource frequency domain position information and the resource time-domain position information of Resource Allocation Formula indication information; Need be when definite with reference to each cooperation cell current resource operating position; So; Need each cooperation cell that its other resources use information is sent to the CoMP processing unit, confirm according to the dispatching algorithm of setting by the CoMP processing unit.
Precoding coefficient: because different for the employed precoding coefficient of different cooperation cell; Himself confirm precoding coefficient parameters needed information so need each cooperation cell all to send to the CoMP processing unit; For example; Each cooperation cell reports to the CoMP processing unit confirms the needed channel condition information of precoding coefficient, and this channel condition information can be that UE feeds back to cooperation cell, also can cooperation cell estimates to obtain according to UE upstream detection pilot frequency signal.
Step S302, CoMP processing unit are after receiving the parameter information that is used for definite cooperation control information of each cooperation cell transmission; Confirm the cooperation control information according to the parameter information that receives; Relevant parameter information to receiving among each control information that specifically comprises in the above-mentioned cooperation control information and the above-mentioned steps S301 is described below respectively:
Corresponding code word 0 or 1 q value information: when receive be the quantity information of the transmission block that uses of transmission data that Serving cell sends the time; Then confirm the code word passage of use according to the quantity information of transmission block; And to determine the q value corresponding with code word 0 passage be 0, and the q value corresponding with code word 1 passage is 1;
When receive be Serving cell send the q value information time, then directly obtain and get final product.
Modulation coding mode or modulation system: receive each cooperation cell and send set the tone really system coded system or modulation system parameters needed information, and confirm according to definite algorithm of setting.
Transmission block is to the code word mapped identification: when what receive is definite transmission block of sending of Serving cell during to code word mapping result parameters needed information, and the CoMP processing unit is determined mapping result according to set algorithm, and further determines mapped identification;
When what receive is the transmission block of the Serving cell sign mapping result of sending during to the code word mapped identification, then directly obtains to get final product.
DM-RS sequence scrambling ID: from the message of carrying DM-RS sequence scrambling ID that the Serving cell that receives sends, obtain and get final product.
The Resource Allocation Formula indication information: the resource according to each cooperation cell is used information, adopts the dispatching algorithm of setting to confirm.
The precoding coefficient: the definite precoding coefficient parameters needed information according to each cooperation cell reports, like channel condition information, adopt set algorithm to confirm.
In the present embodiment 1, confirm the specific algorithm of each control information can adopt various algorithm of the prior art according to the parameter information that receives, no longer be described in detail at this for above-mentioned.
Step S303, CoMP processing unit are after determining the cooperation control information, and the control information of will cooperating sends to each cooperation cell.
Based on each control information that specifically comprises in the above-mentioned cooperation control information, the embodiment of the invention proposes a kind of message format that carries this cooperation control information, and is specific as follows:
First kind of message format: when the data of handling were source data, the Protocol Control Information that sends to each cooperation cell was identical, carries the message format of this cooperation control information, specifically comprises:
Modulation coding mode subdomain: be used to carry the modulation coding mode indication information; And; This modulation coding mode subdomain comprises: the modulation coding mode subdomain of the modulation coding mode subdomain of code word 0 correspondence and code word 1 correspondence; Corresponding respectively indication code word 0 passage is encoded to data and is modulated employed modulation coding mode and code word 1 passage and data are encoded and modulate employed modulation coding mode;
And,, be 0 and 1 promptly with code word 0 passage and the corresponding respectively q value of code word 1 passage because the use of code word 0 and 1 passage is relevant with the q value information; So; Can use code word 0 and code word 1 corresponding modulation coding mode subdomain to characterize the q value information corresponding with code word 0 or 1, for example, when each bit of the modulation coding mode subdomain of code word 1 correspondence is complete 0 the time; Expression code word 1 passage does not use; And then can characterize the q value and be merely corresponding with code word 00, otherwise, characterize q value and comprise respectively corresponding with code word 0 and code word 10 and 1;
Transmission block is used to carry transmission block to the code word mapped identification to code word mapped identification subdomain;
DM-RS sequence scrambling ID indicates subdomain, is used to carry DM-RS sequence scrambling ID;
Precoding coefficient subdomain is used to carry the precoding coefficient; As previously mentioned; The entrained precoding coefficient of this subdomain can comprise the precoding coefficient that all each cooperation cell are used, and also can only comprise the precoding coefficient of the cooperation cell use that receives this cooperation control information, and is preferable; In order to reduce the quantity of cooperation control information, adopt latter's mode.
Resource allocation type identification subdomain is used to carry the resource allocation type identification;
Downlink resource distributes subdomain, is used to carry resource frequency domain position information, perhaps also carries resource time-domain position information.
When the data of handling be the data to source data coding scrambling process, the Protocol Control Information that sends to each cooperation cell of Serving cell and other can be different, and the message format that carries this cooperation control information accordingly also can difference:
Second kind of message format; For the message format that sends to Serving cell; Specifically can adopt and above-mentioned first kind of message format that message format is identical; Difference is need not carry scrambling instruction information, so the modulation coding mode subdomain in the message no longer need characterize scrambling instruction information, promptly need not characterize the q value information of corresponding code word 0 or 1;
The third message format; Message format for sending to other Serving cell specifically comprises: the transmission block in above-mentioned first kind of message distributes subdomain to code word mapped identification subdomain, DM-RS sequence scrambling ID indication subdomain, precoding coefficient subdomain, resource allocation type identification subdomain and downlink resource; In addition, also comprise the modulation system subdomain, be used to carry the modulation system indication information.
In the present embodiment 1, can the message of carrying the cooperation control information be sent to each cooperation cell through the interface that is exclusively used in the cooperative transmission control information that is provided with.
The cooperation control information sending method that adopts the foregoing description 1 to provide has promptly realized data are handled the distribution of needed Control Parameter between each cooperation cell.
Embodiment 2:
The cooperation control information sending method that provides based on the foregoing description 1; Present embodiment 2 provides a kind of data transmission method for uplink, and wherein, the data that each cooperation cell is shared are source data; The data that promptly need handle are source data; The cooperation control information comprises: scrambling instruction information, Modulation and Coding Scheme indication information, DM-RS sequence indication, precoding indication information and Resource Allocation Formula indication information, and detailed process is as shown in Figure 4, comprising:
Step S401, cooperation cell receive the cooperation control information that the CoMP processing unit sends.
Step S402, according to the Modulation and Coding Scheme indication information of cooperation in the control information, source data is carried out chnnel coding, the data after obtaining encoding.
Be specially at first and arrive the code word mapped identification, determine the code word passage that source data is encoded, and use corresponding code word passage that source data is encoded according to transmission block.
Step S403, carry out scrambling according to the data of the scrambling instruction information of cooperation in the control information after to coding, obtain the data after the scrambling, this step specifically comprises:
At first generate the scramble sequence that scrambling process needs, in LTE, the scrambler that the pseudorandom Gold sign indicating number of The data 31 bit lengths after the UE chnnel coding generates carries out scrambling.Gold sign indicating number sequence is by a M sequence x 1With the 2nd M sequence x 2Generate, wherein, x 1Initial value be fixed value, irrelevant with Serving cell and UE, and x 2The initial value of (binary system) (being represented by decimal number) adopts following formula to confirm:
Figure BDA0000046688560000111
This initial value is relevant with Serving cell and UE, wherein, and n RNTIThe wireless network temporary identifier RNTI of expression UE, span is [1,65523], q=0 or 1, corresponding code word 0 or code word 1, n sTimeslot number in the expression radio frames, span is [1,19],
Figure BDA0000046688560000112
Expression Serving cell physical identification PCI, span is [1,503].This shows, confirm that UE scramble sequence relevant parameter comprises the RNTI of UE, the PCI of Serving cell, the timeslot number n of q value and transmission data s
So, in this step, can from the cooperation control information that receives, obtain for the q value; For timeslot number n s, when it is fixing the use, can preserve in this locality in advance, if the on-fixed use, then from the cooperation control information that receives, obtain; PCI for the Serving cell of UE; Propose in the present embodiment when forming the cooperation cell set; Each cooperation cell is all at the PCI of each cooperation cell of local maintenance, so when confirming scramble sequence, can directly obtain the PCI of Serving cell of the UE of preservation from this locality; For the RNTI of UE, propose when sharing source data in the present embodiment, promptly cooperation cell receives the RNTI of UE simultaneously when the reception sources data.
After determining scramble sequence, the data after using scramble sequence to coding are carried out scrambling, obtain the data after the scrambling.
Step S404, modulate the data after obtaining modulating according to the data of Modulation and Coding Scheme indication information after to scrambling.
When modulating, the data after using corresponding code word passage to scrambling are modulated.
Step S405, generate the DM-RS sequence according to the demodulated reference signal DM-RS sequence indication of cooperation in the control information.
The DM-RS of data is also generated by pseudo random sequence, and this pseudo random sequence initial value adopts following formula to confirm:
Figure BDA0000046688560000113
Wherein, n ScidBe the sequence scrambling ID that is associated with the PDSCH transmission, value is 0 or 1.This shows that the DM-RS sequence relevant parameter of UE comprises the PCI of Serving cell, the timeslot number n of transmission data sAnd n Scid
In this step, for n Scid, can confirm through the DM-RS sequence indication in the cooperation control information; PCI and n for Serving cell sCan adopt with above-mentioned steps S403 in identical mode obtain, no longer be described in detail at this.
Generate the DM-RS sequence according to the random sequence initial value of determining.
This step does not have strict sequencing with above-mentioned steps S402-404.
Step S406, carry out precoding, obtain data and the DM-RS sequence after the precoding after the precoding according to the data and the DM-RS sequence of the precoding indication information (being the precoding coefficient) of cooperation in the control information after to modulation.
In this step, when having comprised the precoding coefficient that all each cooperation cell are used in the precoding indication information, cooperation cell need therefrom be obtained the precoding coefficient that self uses, and is used for follow-up precoding processing.
After the precoding processing in accomplishing this step, the data after promptly having obtained source data handled.
Step S407, according to the Resource Allocation Formula indication information of cooperation in the control information; Comprise: the resource allocation type identification; Resource frequency domain position information and resource time-domain position information are carried out the physical resource mapping to data after the precoding and the DM-RS sequence after the precoding.
Data and DM-RS sequence precoding after of the physical resource that step S408, each cooperation cell are used mapping after UE sends precoding is promptly at time slot n sSend the data after handling among the corresponding physical DSCH Downlink Shared Channel PDSCH, send the DM-RS sequence after handling at corresponding channel.
Step S409, Serving cell are at time slot n sSend the DCI relevant among the corresponding physical down control channel PDCCH, be used for using when UE receives data with these data.
In the embodiment of the invention 2, the data that each cooperation cell is shared are source data, and except that the service sub-district, other each cooperation cell can pass through to receive the source data of Serving cell transmission so that share the data that need processing.And,,, all source data is carried out identical above-mentioned handling process so each cooperation cell comprises Serving cell because the data of sharing are source data.
The above-mentioned data transmission method for uplink that adopts the embodiment of the invention 2 to provide has been realized the transparent transmission to the down collaboration multiple spot of data.
Embodiment 3:
The cooperation control information sending method that provides based on the foregoing description 1; Present embodiment 3 provides a kind of data transmission method for uplink; Wherein, The data that each cooperation cell is shared are for to the data after the source data coding scrambling process, and the data that promptly need handle are for to the data after the source data coding scrambling process, specifically can be by Serving cell in advance to the source data scrambling process of encoding; And the data that obtain after will handling send to other each cooperation cell, to realize sharing the data after the coding scrambling process between each cooperation cell.So in the present embodiment 3, Serving cell is different to the handling process of data with other cooperation cell, corresponding, the cooperation control information that Serving cell and other cooperation cell receive also can be different.
Wherein, as described in the above-mentioned embodiment 1, the cooperation control information that Serving cell receives comprises: Modulation and Coding Scheme indication information, DM-RS sequence indication, precoding indication information and Resource Allocation Formula indication information; Accordingly; Serving cell is identical to flow process shown in Figure 4 in the handling process of source data and the foregoing description 2, and difference is, among the above-mentioned steps S403; The q value information can be confirmed by Serving cell self; Need not obtain the control information, and after the data after the scrambling process that obtains encoding, give other each cooperation cell this transfer of data from cooperation;
The cooperation control information that other cooperation cell receives comprises: the modulation scheme indication information (considers that present modulation coding mode adopts unified format to indicate jointly; So also can be the Modulation and Coding Scheme indication information; But encoding scheme indication information does not wherein need to use), DM-RS sequence indication, precoding indication information and Resource Allocation Formula indication information; Other cooperation cell is as shown in Figure 5 to the detailed process of the data processing of coding after the scrambling process, comprising:
Step S501, cooperation cell receive the cooperation control information that the CoMP processing unit sends.
Step S502, the data of coding after the scrambling are modulated the data after obtaining modulating according to the Modulation and Coding Scheme indication information.
Be specially at first according to transmission block to the code word mapped identification, determine the code word passage that source data is modulated, and modulate with the code word passage of the correspondence data after to scrambling.
Step S503, generate the DM-RS sequence according to the demodulated reference signal DM-RS sequence indication of cooperation in the control information.
The DM-RS of data is also generated by pseudo random sequence, and this pseudo random sequence initial value adopts following formula to confirm:
Figure BDA0000046688560000141
Wherein, n ScidBe the sequence scrambling ID that is associated with the PDSCH transmission, value is 0 or 1, n sTimeslot number in the expression radio frames, span is [1,19],
Figure BDA0000046688560000142
Expression Serving cell physical identification PCI, span is [1,503].This shows that the DM-RS sequence relevant parameter of UE comprises the PCI of Serving cell, the timeslot number n of transmission data sAnd n Scid
So, in this step, for n Scid, can confirm through the DM-RS sequence indication in the cooperation control information; For timeslot number n s, when it is fixing the use, can preserve in this locality in advance, if the on-fixed use, then from the cooperation control information that receives, obtain; PCI for the Serving cell of UE; Propose in the present embodiment when forming the cooperation cell set; Each cooperation cell is all at the PCI of each cooperation cell of local maintenance, so when confirming scramble sequence, can directly obtain the PCI of Serving cell of the UE of preservation from this locality; For the RNTI of UE, propose when sharing source data in the present embodiment, promptly cooperation cell receives the RNTI of UE simultaneously when the reception sources data.
Generate the DM-RS sequence according to the random sequence initial value of determining.
This step does not have strict sequencing with above-mentioned steps S502.
Step S504, carry out precoding, obtain data and the DM-RS sequence after the precoding after the precoding according to the data and the DM-RS sequence of the precoding indication information (being the precoding coefficient) of cooperation in the control information after to modulation.
In this step, when having comprised the precoding coefficient that all each cooperation cell are used in the precoding indication information, cooperation cell need therefrom be obtained the precoding coefficient that self uses, and is used for follow-up precoding processing.
After the precoding processing in accomplishing this step, the data after promptly having obtained source data handled.
Step S505, according to the Resource Allocation Formula indication information of cooperation in the control information; Comprise: the resource allocation type identification; Resource frequency domain position information and resource time-domain position information are carried out the physical resource mapping to data after the precoding and the DM-RS sequence after the precoding.
Data and DM-RS sequence precoding after of the physical resource that step S506, each cooperation cell are used mapping after UE sends precoding is promptly at time slot n sSend the data after handling among the corresponding PDSCH, send the DM-RS sequence after handling at corresponding channel.
Step S507, Serving cell are at time slot n sSend the DCI relevant among the corresponding physical down control channel PDCCH, be used for using when UE receives data with these data.
In the embodiment of the invention 3; The data that each cooperation cell is shared are to the data after the scrambling of source data coding; Except that the service sub-district, other each cooperation cell can through receive that Serving cell sends to the data after the scrambling of source data coding need the data handled so that share.
The above-mentioned data transmission method for uplink that adopts the embodiment of the invention 3 to provide has been realized the transparent transmission to the down collaboration multiple spot of data.
Embodiment 4:
Based on same inventive concept, the cooperation control information sending method that provides according to the above embodiment of the present invention, correspondingly; The embodiment of the invention 4 also provides a kind of cooperation control information dispensing device; Be above-mentioned CoMP processing unit, its structural representation is as shown in Figure 6, specifically comprises:
Confirm unit 601, be used for before sending data to UE, confirm to be used for needed cooperation control information is handled and sent to said data;
First transmitting element 602 is used for said cooperation control information is sent to each cooperation cell of said data being carried out the down collaboration multicast communication.
Preferable; Said definite unit 601; Specifically be used for when said data are source data, confirm to be used for needed scrambling instruction information, Modulation and Coding Scheme indication information, demodulated reference signal DM-RS sequence indication, precoding indication information and Resource Allocation Formula indication information are handled and sent to said data.
Preferable; Said definite unit 601; When specifically being used for the data after said data are for scrambling process that source data is encoded; Confirm to send to the Serving cell of the said UE in said each cooperation cell, be used for needed Modulation and Coding Scheme indication information, DM-RS sequence indication, precoding indication information and Resource Allocation Formula indication information are handled and sent to said data; And confirm to send to other each cooperation cell except that said Serving cell, be used for needed modulation scheme indication information, DM-RS sequence indication, precoding indication information and Resource Allocation Formula indication information are handled and sent to said data.
Preferable, said definite unit 601 specifically is used for confirming corresponding code word 0 that said scrambling instruction information comprises or 1 q value information.
Preferable; Said definite unit 601; Specifically be used for modulation coding mode indication information that said Modulation and Coding Scheme indication information comprises and transmission block to the code word mapped identification; Modulation system indication information that said modulation scheme indication information comprises and transmission block are to the code word mapped identification; The DM-RS sequence scrambling ID that said DM-RS sequence indication comprises, the precoding coefficient that said precoding indication information comprises, the resource allocation type identification that said Resource Allocation Formula indication information comprises and resource frequency domain position information.
Preferable; Said definite unit 601; Also be used for when said data being handled resource needed time-domain position information and be the assigned timeslot of revocable radio frames, confirming the resource time-domain position information that said scrambling instruction information, said DM-RS sequence indication and Resource Allocation Formula indication information comprise.
Preferable; Said first transmitting element 602; Specifically be used for when said data are source data, in the message of carrying said cooperation control information that sends to each cooperation cell of said data being carried out the down collaboration multicast communication, carry the modulation coding mode indication information through the modulation coding mode subdomain; Carry transmission block to the code word mapped identification through transmission block to code word mapped identification subdomain; Carry DM-RS sequence scrambling ID through DM-RS sequence scrambling ID indication subdomain, carry the precoding coefficient, carry the resource allocation type identification through resource allocation type identification subdomain through precoding coefficient subdomain; Distribute subdomain to carry resource frequency domain position information through downlink resource, said cooperation control information is sent to said each cooperation cell; Wherein, said modulation coding mode subdomain comprises: the modulation coding mode subdomain of the modulation coding mode subdomain of code word 0 correspondence and code word 1 correspondence; Said code word 1 corresponding modulation coding mode subdomain also is used to characterize the q value information of corresponding code word 0 or 1.
Preferable; Said first transmitting element 602; Specifically be used for when said data for to the data after the source data coding scrambling process time, in the message of carrying said cooperation control information that sends to the Serving cell of said UE, carry the modulation coding mode indication information through the modulation coding mode subdomain; Carry transmission block to the code word mapped identification through transmission block to code word mapped identification subdomain; Carry DM-RS sequence scrambling ID through DM-RS sequence scrambling ID indication subdomain, carry the precoding coefficient, carry the resource allocation type identification through resource allocation type identification subdomain through precoding coefficient subdomain; Distribute subdomain to carry resource frequency domain position information through downlink resource, said cooperation control information is sent to said Serving cell; And
In the message of carrying said cooperation control information that sends to each cooperation cell of said data being carried out the down collaboration multicast communication except that service other sub-district; Carry the modulation system indication information through the modulation system subdomain; Carry transmission block to the code word mapped identification through transmission block to code word mapped identification subdomain; Carry DM-RS sequence scrambling ID through DM-RS sequence scrambling ID indication subdomain, carry the precoding coefficient, carry the resource allocation type identification through resource allocation type identification subdomain through precoding coefficient subdomain; Distribute subdomain to carry resource frequency domain position information through downlink resource, said cooperation control information is sent to the Serving cell of said UE.
Preferable, said first transmitting element 602 also is used for distributing subdomain to carry resource time-domain position information through said downlink resource, and said resource time-domain position information is sent to said each cooperation cell.
Preferable, said definite unit 601 specifically is used to receive the parameter information that is used for confirming the cooperation control information that said each cooperation cell is sent; And confirm said cooperation control information according to said parameter information.
Embodiment 5:
Based on same inventive concept, according to the data transmission method for uplink that the above embodiment of the present invention provides, correspondingly, the embodiment of the invention 5 also provides the data sending device in a kind of cooperation cell, and its structural representation is as shown in Figure 7, specifically comprises:
Receiving element 701 is used for receiving the cooperation control information;
Processing unit 702 is used for needs being carried out the data of down collaboration multicast communication and handling according to said cooperation control information;
Second transmitting element 703 is used to use the physical resource of said cooperation control information indication, sends the data after handling to user equipment (UE).
Preferable, said processing unit 702 specifically is used for the Modulation and Coding Scheme indication information according to said cooperation control information, needs is carried out the source data of down collaboration multicast communication and carries out chnnel coding, the data after obtaining encoding; And, the data behind the coding are carried out scrambling according to the scrambling instruction information in the said cooperation control information, obtain the data after the scrambling; And, the data after the scrambling are modulated the data after obtaining modulating according to said Modulation and Coding Scheme indication information; And according to the generation of the demodulated reference signal DM-RS sequence indication in said cooperation control information DM-RS sequence; And, data and said DM-RS sequence after the modulation are carried out precoding according to the precoding indication information in the said cooperation control information, obtain data and the DM-RS sequence after the precoding after the precoding.
Preferable; Said processing unit 702; Physical identification PCI, the fixing resource time-domain position information of using of the Serving cell of the said UE that specifically is used for preserving according to this locality, the wireless network temporary identifier RNTI that follows the said UE that said data together receive and the q value information of the corresponding code word 0 of said cooperation control information or 1 generate scramble sequence; Perhaps
Corresponding code word 0 or 1 q value information generate scramble sequence in the physical identification PCI of the Serving cell of the said UE that preserves according to this locality, the resource time-domain position information in the said cooperation control information, the wireless network temporary identifier RNTI that follows the said UE that said data together receive and the said cooperation control information;
Data after using said scramble sequence to coding are carried out scrambling, obtain the data after the scrambling.
Preferable, said processing unit 702 specifically is used for according to the modulation scheme indication information in the said cooperation control information, the data after the coding scrambling process being modulated the data after obtaining modulating when said device is non-when being positioned at the Serving cell of said UE; The data that data after the said coding scrambling process obtain after for the source data coding scrambling process of needs being carried out the down collaboration multicast communication; And according to the generation of the demodulated reference signal DM-RS sequence indication in said cooperation control information DM-RS sequence; And, data and said DM-RS sequence after the modulation are carried out precoding according to the precoding indication information in the said cooperation control information, obtain data and the DM-RS sequence after the precoding after the precoding.
Preferable; Said processing unit 702 specifically is used for when said device is positioned at the Serving cell of said UE, according to the Modulation and Coding Scheme indication information in the said cooperation control information; Needs are carried out the source data of down collaboration multicast communication and carry out chnnel coding, the data after obtaining encoding; And the data behind the coding are carried out scrambling, obtain the data after the scrambling; And, the data after the scrambling are modulated the data after obtaining modulating according to said Modulation and Coding Scheme indication information; And according to the generation of the demodulated reference signal DM-RS sequence indication in said cooperation control information DM-RS sequence; And, data and said DM-RS sequence after the modulation are carried out precoding according to the precoding indication information in the said cooperation control information, obtain data and the DM-RS sequence after the precoding after the precoding.
Preferable, said processing unit 702 specifically is used for generating the DM-RS sequence according to the physical identification PCI of the Serving cell of fixing the resource time-domain position information of using, the local said UE that preserves and the DM-RS sequence scrambling ID of said cooperation control information; Perhaps, generate the DM-RS sequence according to the physical identification PCI of the Serving cell of the resource time-domain position information in the said cooperation control information, the local said UE that preserves and the DM-RS sequence scrambling ID in the said cooperation control information.
Preferable, said second transmitting element 703 specifically is used for the Resource Allocation Formula indication information according to said cooperation control information, and data after the precoding and the DM-RS sequence after the precoding are carried out the physical resource mapping; And data and DM-RS sequence precoding after of the physical resource that uses mapping after UE sends precoding.
Embodiment 6:
Based on same inventive concept; The cooperation control information sending method and the data transmission method for uplink that provide according to the above embodiment of the present invention; Correspondingly, the embodiment of the invention 6 also provides a kind of data Transmission system, and its structural representation is as shown in Figure 8; Specifically comprise: cooperation control information dispensing device 801 and the data sending device 802 that carries out each cooperation cell of down collaboration multicast communication, wherein:
Said cooperation control information dispensing device 801 was used for before sending data to UE, confirmed to be used for needed cooperation control information is handled and sent to said data; And said cooperation control information sent to the data sending device 802 of said each cooperation cell;
Said data sending device 802 is used to receive said cooperation control information; And, needs are carried out the data of down collaboration multicast communication and handle according to said cooperation control information; And the physical resource that uses said cooperation control information indication, send the data after handling to said UE.
In sum, the scheme that the embodiment of the invention provides comprises: before sending data to user equipment (UE), confirm to be used for needed cooperation control information is handled and sent to data; And the control information of will cooperating sends to each cooperation cell of data being carried out the down collaboration multicast communication.Also comprise: each cooperation cell receives the cooperation control information; And, needs are carried out the data of down collaboration multicast communication and handle according to the cooperation control information; And the physical resource that uses cooperation control information indication, send the data after handling to UE.The scheme that adopts the embodiment of the invention to provide has realized data are handled the distribution of needed Control Parameter between each cooperation cell, has also realized the transparent transmission to the down collaboration multiple spot of data.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.

Claims (36)

1. a cooperation control information sending method is characterized in that, comprising:
Before sending data to user equipment (UE), confirm to be used for needed cooperation control information is handled and sent to said data;
Said cooperation control information is sent to each cooperation cell of said data being carried out the down collaboration multicast communication.
2. the method for claim 1; It is characterized in that; When said data were source data, said cooperation control information comprised: scrambling instruction information, Modulation and Coding Scheme indication information, demodulated reference signal DM-RS sequence indication, precoding indication information and Resource Allocation Formula indication information.
3. the method for claim 1; It is characterized in that; When said data are during to the data after the source data coding scrambling process, the said cooperation control information that sends to the Serving cell of the said UE in said each cooperation cell comprises: Modulation and Coding Scheme indication information, DM-RS sequence indication, precoding indication information and Resource Allocation Formula indication information; The said cooperation control information that sends to other each cooperation cell except that said Serving cell comprises: modulation scheme indication information, DM-RS sequence indication, precoding indication information and Resource Allocation Formula indication information.
4. method as claimed in claim 2 is characterized in that, said scrambling instruction information comprises: corresponding code word 0 or 1 q value information.
5. like claim 3 or 4 described methods, it is characterized in that said Modulation and Coding Scheme indication information comprises: modulation coding mode indication information and transmission block are to the code word mapped identification;
Said modulation scheme indication information comprises: modulation system indication information and transmission block are to the code word mapped identification;
Said DM-RS sequence indication comprises: DM-RS sequence scrambling ID;
Said precoding indication information comprises: the precoding coefficient;
Said Resource Allocation Formula indication information comprises: resource allocation type identification and resource frequency domain position information.
6. method as claimed in claim 5; It is characterized in that; When said data being handled resource needed time-domain position information and be the assigned timeslot in revocable radio frames, said scrambling instruction information, said DM-RS sequence indication and Resource Allocation Formula indication information all also comprise: resource time-domain position information.
7. method as claimed in claim 5 is characterized in that, said precoding coefficient is and the corresponding precoding coefficient of cooperation cell that receives said cooperation control information; Perhaps
Said precoding coefficient comprises the precoding coefficient corresponding respectively with said each cooperation cell.
8. the method for claim 1 is characterized in that, when said data are source data, said cooperation control information is sent to each cooperation cell of said data being carried out the down collaboration multicast communication, is specially:
In the message of carrying said cooperation control information that sends to each cooperation cell of said data being carried out the down collaboration multicast communication; Carry the modulation coding mode indication information through the modulation coding mode subdomain; Carry transmission block to the code word mapped identification through transmission block to code word mapped identification subdomain; Carry DM-RS sequence scrambling ID through DM-RS sequence scrambling ID indication subdomain, carry the precoding coefficient, carry the resource allocation type identification through resource allocation type identification subdomain through precoding coefficient subdomain; Distribute subdomain to carry resource frequency domain position information through downlink resource, said cooperation control information is sent to said each cooperation cell; Wherein, said modulation coding mode subdomain comprises: the modulation coding mode subdomain of the modulation coding mode subdomain of code word 0 correspondence and code word 1 correspondence; Said code word 1 corresponding modulation coding mode subdomain also is used to characterize the q value information of corresponding code word 0 or 1.
9. the method for claim 1 is characterized in that, when said data are during to the data after the source data coding scrambling process, said cooperation control information is sent to each cooperation cell of said data being carried out the down collaboration multicast communication, specifically comprises:
In the message of carrying said cooperation control information that sends to the Serving cell of said UE; Carry the modulation coding mode indication information through the modulation coding mode subdomain; Carry transmission block to the code word mapped identification through transmission block to code word mapped identification subdomain; Carry DM-RS sequence scrambling ID through DM-RS sequence scrambling ID indication subdomain, carry the precoding coefficient, carry the resource allocation type identification through resource allocation type identification subdomain through precoding coefficient subdomain; Distribute subdomain to carry resource frequency domain position information through downlink resource, said cooperation control information is sent to said Serving cell;
In the message of carrying said cooperation control information that sends to each cooperation cell of said data being carried out the down collaboration multicast communication except that service other sub-district; Carry the modulation system indication information through the modulation system subdomain; Carry transmission block to the code word mapped identification through transmission block to code word mapped identification subdomain; Carry DM-RS sequence scrambling ID through DM-RS sequence scrambling ID indication subdomain, carry the precoding coefficient, carry the resource allocation type identification through resource allocation type identification subdomain through precoding coefficient subdomain; Distribute subdomain to carry resource frequency domain position information through downlink resource, said cooperation control information is sent to the Serving cell of said UE.
10. like claim 8 or 9 described methods, it is characterized in that said downlink resource distributes subdomain also to carry resource time-domain position information.
11. the method for claim 1 is characterized in that, confirms to be used for needed cooperation control information is handled and sent to said data, specifically comprises:
Receive the parameter information that is used for confirming the cooperation control information that said each cooperation cell is sent;
Confirm said cooperation control information according to said parameter information.
12. a data transmission method for uplink is characterized in that, comprising:
Each cooperation cell of carrying out the down collaboration multicast communication receives the cooperation control information; And
According to said cooperation control information, needs are carried out the data of down collaboration multicast communication and handle;
Use the physical resource of said cooperation control information indication, send the data after handling to user equipment (UE).
13. method as claimed in claim 12 is characterized in that, according to said cooperation control information, needs is carried out the data of down collaboration multicast communication and handles, and specifically comprises:
According to the Modulation and Coding Scheme indication information in the said cooperation control information, needs are carried out the source data of down collaboration multicast communication and carry out chnnel coding, the data after obtaining encoding;
According to the scrambling instruction information in the said cooperation control information, the data behind the coding are carried out scrambling, obtain the data after the scrambling;
According to said Modulation and Coding Scheme indication information, the data after the scrambling are modulated the data after obtaining modulating;
Generate the DM-RS sequence according to the demodulated reference signal DM-RS sequence indication in the said cooperation control information;
According to the precoding indication information in the said cooperation control information, data and said DM-RS sequence after the modulation are carried out precoding, obtain data and the DM-RS sequence after the precoding after the precoding.
14. method as claimed in claim 13 is characterized in that, according to the scrambling instruction information in the said cooperation control information, the data behind the coding is carried out scrambling, obtains the data after the scrambling, specifically comprises:
Corresponding code word 0 or 1 q value information generate scramble sequence in physical identification PCI, the fixing resource time-domain position information of using of the Serving cell of the said UE that preserves according to this locality, the wireless network temporary identifier RNTI that follows the said UE that said data together receive and the said cooperation control information; Perhaps
Corresponding code word 0 or 1 q value information generate scramble sequence in the physical identification PCI of the Serving cell of the said UE that preserves according to this locality, the resource time-domain position information in the said cooperation control information, the wireless network temporary identifier RNTI that follows the said UE that said data together receive and the said cooperation control information;
Data after using said scramble sequence to coding are carried out scrambling, obtain the data after the scrambling.
15. method as claimed in claim 12 is characterized in that, when said cooperation cell is the Serving cell of non-said UE, according to said cooperation control information, needs is carried out the data of down collaboration multicast communication and handles, and specifically comprises:
According to the modulation scheme indication information in the said cooperation control information, the data after the coding scrambling process are modulated the data after obtaining modulating; The data that data after the said coding scrambling process obtain after for the source data coding scrambling process of needs being carried out the down collaboration multicast communication;
Generate the DM-RS sequence according to the demodulated reference signal DM-RS sequence indication in the said cooperation control information;
According to the precoding indication information in the said cooperation control information, data and said DM-RS sequence after the modulation are carried out precoding, obtain data and the DM-RS sequence after the precoding after the precoding.
16. method as claimed in claim 15 is characterized in that, when said cooperation cell is the Serving cell of said UE, according to said cooperation control information, needs is carried out the data of down collaboration multicast communication and handles, and specifically comprises:
According to the Modulation and Coding Scheme indication information in the said cooperation control information, needs are carried out the source data of down collaboration multicast communication and carry out chnnel coding, the data after obtaining encoding;
Data to behind the coding are carried out scrambling, obtain the data after the scrambling;
According to said Modulation and Coding Scheme indication information, the data after the scrambling are modulated the data after obtaining modulating;
Generate the DM-RS sequence according to the demodulated reference signal DM-RS sequence indication in the said cooperation control information;
According to the precoding indication information in the said cooperation control information, data and said DM-RS sequence after the modulation are carried out precoding, obtain data and the DM-RS sequence after the precoding after the precoding.
17., it is characterized in that like claim 13,15 or 16 described methods, generate the DM-RS sequence according to the demodulated reference signal DM-RS sequence indication in the said cooperation control information, be specially:
According to the physical identification PCI of the Serving cell of fixing the resource time-domain position information of using, the local said UE that preserves and the DM-RS sequence scrambling ID in the said cooperation control information, generate the DM-RS sequence; Perhaps
According to the physical identification PCI of the Serving cell of the resource time-domain position information in the said cooperation control information, the local said UE that preserves and the DM-RS sequence scrambling ID in the said cooperation control information, generate the DM-RS sequence.
18., it is characterized in that like claim 13,15 or 16 described methods, use the physical resource of said cooperation control information indication, send the data after handling to UE, specifically comprise:
According to the Resource Allocation Formula indication information in the said cooperation control information, data after the precoding and the DM-RS sequence after the precoding are carried out the physical resource mapping;
Data and DM-RS sequence precoding after of the physical resource that uses mapping after UE sends precoding.
19. a cooperation control information dispensing device is characterized in that, comprising:
Confirm the unit, be used for before sending data to user equipment (UE), confirm to be used for needed cooperation control information is handled and sent to said data;
First transmitting element is used for said cooperation control information is sent to each cooperation cell of said data being carried out the down collaboration multicast communication.
20. device as claimed in claim 19; It is characterized in that; Said definite unit; Specifically be used for when said data are source data, confirm to be used for needed scrambling instruction information, Modulation and Coding Scheme indication information, demodulated reference signal DM-RS sequence indication, precoding indication information and Resource Allocation Formula indication information are handled and sent to said data.
21. device as claimed in claim 19; It is characterized in that; Said definite unit; Specifically be used for when said data for to the data after the source data coding scrambling process time, confirm to send to the Serving cell of the said UE in said each cooperation cell, be used for needed Modulation and Coding Scheme indication information, DM-RS sequence indication, precoding indication information and Resource Allocation Formula indication information are handled and sent to said data; And confirm to send to other each cooperation cell except that said Serving cell, be used for needed modulation scheme indication information, DM-RS sequence indication, precoding indication information and Resource Allocation Formula indication information are handled and sent to said data.
22. device as claimed in claim 20 is characterized in that, said definite unit specifically is used for confirming corresponding code word 0 that said scrambling instruction information comprises or 1 q value information.
23. like claim 20 or 22 described devices; It is characterized in that; Said definite unit; Be used for specifically confirming that modulation coding mode indication information and transmission block that said Modulation and Coding Scheme indication information comprises arrive the code word mapped identification, modulation system indication information that said modulation scheme indication information comprises and transmission block are to code word mapped identification, the DM-RS sequence scrambling ID that said DM-RS sequence indication comprises; The precoding coefficient that said precoding indication information comprises, the resource allocation type identification that said Resource Allocation Formula indication information comprises and resource frequency domain position information.
24. device as claimed in claim 23; It is characterized in that; Said definite unit; Also be used for when said data being handled resource needed time-domain position information and be the assigned timeslot of revocable radio frames, confirming the resource time-domain position information that said scrambling instruction information, said DM-RS sequence indication and Resource Allocation Formula indication information comprise.
25. device as claimed in claim 19; It is characterized in that said first transmitting element specifically is used for when said data are source data; In the message of carrying said cooperation control information that sends to each cooperation cell of said data being carried out the down collaboration multicast communication; Carry the modulation coding mode indication information through the modulation coding mode subdomain, carry transmission block to the code word mapped identification to code word mapped identification subdomain, carry DM-RS sequence scrambling ID through DM-RS sequence scrambling ID indication subdomain through transmission block; Carry the precoding coefficient through precoding coefficient subdomain; Carry the resource allocation type identification through resource allocation type identification subdomain, distribute subdomain to carry resource frequency domain position information, said cooperation control information is sent to said each cooperation cell through downlink resource; Wherein, said modulation coding mode subdomain comprises: the modulation coding mode subdomain of the modulation coding mode subdomain of code word 0 correspondence and code word 1 correspondence; Said code word 1 corresponding modulation coding mode subdomain also is used to characterize the q value information of corresponding code word 0 or 1.
26. device as claimed in claim 19; It is characterized in that said first transmitting element is when specifically being used for the data after said data are for scrambling process that source data is encoded; In the message of carrying said cooperation control information that sends to the Serving cell of said UE; Carry the modulation coding mode indication information through the modulation coding mode subdomain, carry transmission block to the code word mapped identification to code word mapped identification subdomain, carry DM-RS sequence scrambling ID through DM-RS sequence scrambling ID indication subdomain through transmission block; Carry the precoding coefficient through precoding coefficient subdomain; Carry the resource allocation type identification through resource allocation type identification subdomain, distribute subdomain to carry resource frequency domain position information, said cooperation control information is sent to said Serving cell through downlink resource; And
In the message of carrying said cooperation control information that sends to each cooperation cell of said data being carried out the down collaboration multicast communication except that service other sub-district; Carry the modulation system indication information through the modulation system subdomain; Carry transmission block to the code word mapped identification through transmission block to code word mapped identification subdomain; Carry DM-RS sequence scrambling ID through DM-RS sequence scrambling ID indication subdomain, carry the precoding coefficient, carry the resource allocation type identification through resource allocation type identification subdomain through precoding coefficient subdomain; Distribute subdomain to carry resource frequency domain position information through downlink resource, said cooperation control information is sent to the Serving cell of said UE.
27., it is characterized in that said first transmitting element also is used for distributing subdomain to carry resource time-domain position information through said downlink resource, and said resource time-domain position information is sent to said each cooperation cell like claim 25 or 26 described devices.
28. device as claimed in claim 19 is characterized in that, said definite unit specifically is used to receive the parameter information that is used for confirming the cooperation control information that said each cooperation cell is sent; And confirm said cooperation control information according to said parameter information.
29. the data sending device in the cooperation cell is characterized in that, comprising:
Receiving element is used for receiving the cooperation control information;
Processing unit is used for needs being carried out the data of down collaboration multicast communication and handling according to said cooperation control information;
Second transmitting element is used to use the physical resource of said cooperation control information indication, sends the data after handling to user equipment (UE).
30. device as claimed in claim 29; It is characterized in that said processing unit specifically is used for the Modulation and Coding Scheme indication information according to said cooperation control information; Needs are carried out the source data of down collaboration multicast communication and carry out chnnel coding, the data after obtaining encoding; And, the data behind the coding are carried out scrambling according to the scrambling instruction information in the said cooperation control information, obtain the data after the scrambling; And, the data after the scrambling are modulated the data after obtaining modulating according to said Modulation and Coding Scheme indication information; And according to the generation of the demodulated reference signal DM-RS sequence indication in said cooperation control information DM-RS sequence; And, data and said DM-RS sequence after the modulation are carried out precoding according to the precoding indication information in the said cooperation control information, obtain data and the DM-RS sequence after the precoding after the precoding.
31. device as claimed in claim 30; It is characterized in that; Said processing unit; Physical identification PCI, the fixing resource time-domain position information of using of the Serving cell of the said UE that specifically is used for preserving according to this locality, the wireless network temporary identifier RNTI that follows the said UE that said data together receive and the q value information of the corresponding code word 0 of said cooperation control information or 1 generate scramble sequence; Perhaps
Corresponding code word 0 or 1 q value information generate scramble sequence in the physical identification PCI of the Serving cell of the said UE that preserves according to this locality, the resource time-domain position information in the said cooperation control information, the wireless network temporary identifier RNTI that follows the said UE that said data together receive and the said cooperation control information;
Data after using said scramble sequence to coding are carried out scrambling, obtain the data after the scrambling.
32. device as claimed in claim 29; It is characterized in that; Said processing unit specifically is used for when said device is non-when being positioned at the Serving cell of said UE, according to the modulation scheme indication information in the said cooperation control information; Data to after the coding scrambling process are modulated the data after obtaining modulating; The data that data after the said coding scrambling process obtain after for the source data coding scrambling process of needs being carried out the down collaboration multicast communication; And according to the generation of the demodulated reference signal DM-RS sequence indication in said cooperation control information DM-RS sequence; And, data and said DM-RS sequence after the modulation are carried out precoding according to the precoding indication information in the said cooperation control information, obtain data and the DM-RS sequence after the precoding after the precoding.
33. device as claimed in claim 32; It is characterized in that; Said processing unit specifically is used for when said device is positioned at the Serving cell of said UE, according to the Modulation and Coding Scheme indication information in the said cooperation control information; Needs are carried out the source data of down collaboration multicast communication and carry out chnnel coding, the data after obtaining encoding; And the data behind the coding are carried out scrambling, obtain the data after the scrambling; And, the data after the scrambling are modulated the data after obtaining modulating according to said Modulation and Coding Scheme indication information; And according to the generation of the demodulated reference signal DM-RS sequence indication in said cooperation control information DM-RS sequence; And, data and said DM-RS sequence after the modulation are carried out precoding according to the precoding indication information in the said cooperation control information, obtain data and the DM-RS sequence after the precoding after the precoding.
34. like claim 30,32 or 33 described devices; It is characterized in that; Said processing unit; Specifically be used for generating the DM-RS sequence according to the physical identification PCI of the Serving cell of fixing the resource time-domain position information of using, the local said UE that preserves and the DM-RS sequence scrambling ID of said cooperation control information; Perhaps, generate the DM-RS sequence according to the physical identification PCI of the Serving cell of the resource time-domain position information in the said cooperation control information, the local said UE that preserves and the DM-RS sequence scrambling ID in the said cooperation control information.
35. like claim 30,32 or 33 described devices; It is characterized in that; Said second transmitting element specifically is used for the Resource Allocation Formula indication information according to said cooperation control information, and data after the precoding and the DM-RS sequence after the precoding are carried out the physical resource mapping; And data and DM-RS sequence precoding after of the physical resource that uses mapping after UE sends precoding.
36. a data Transmission system is characterized in that, comprising: the data sending device in cooperation control information dispensing device and each cooperation cell of carrying out the down collaboration multicast communication, wherein:
Said cooperation control information dispensing device was used for before sending data to user equipment (UE), confirmed to be used for needed cooperation control information is handled and sent to said data; And said cooperation control information sent to said each cooperation cell;
Said data sending device is used to receive said cooperation control information; And, needs are carried out the data of down collaboration multicast communication and handle according to said cooperation control information; And the physical resource that uses said cooperation control information indication, send the data after handling to said UE.
CN2011100368467A 2011-02-12 2011-02-12 Coordination control information distributing and data sending method, device and system Pending CN102638295A (en)

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