CN102638851A - Method, device and system for data sharing and transmission - Google Patents
Method, device and system for data sharing and transmission Download PDFInfo
- Publication number
- CN102638851A CN102638851A CN2011100369578A CN201110036957A CN102638851A CN 102638851 A CN102638851 A CN 102638851A CN 2011100369578 A CN2011100369578 A CN 2011100369578A CN 201110036957 A CN201110036957 A CN 201110036957A CN 102638851 A CN102638851 A CN 102638851A
- Authority
- CN
- China
- Prior art keywords
- data
- serving cell
- precoding
- sequence
- scrambling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0205—Traffic management, e.g. flow control or congestion control at the air interface
Abstract
The invention discloses a method, a data sharing, a device and a data system for data sharing and transmission. The data sharing and transmission method comprises the steps that a serving cell determines data for downlink cooperative multipoint transmission of user equipment (UE) which is governed by the serving cell; the determined data is transmitted to each cooperative cell of the serving cell; the cooperative cells for conducting the downlink cooperative multipoint transmission of the serving cell to which the UE belongs receive the data transmitted by the serving cell; the received data is processed; and the processed data is transmitted to the UE. By adopting the scheme provided by the embodiment of the invention, the sharing of the data transmitted to the UE among the cooperative cells is realized and the downlink cooperative multipoint transparent transmission of the data is also realized.
Description
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 data sharing and sending method, 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 receives 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; In order to realize transparent transmission, after assurance will send to UE to sent the data after the data processing, UE can parse identical data; Need each cooperation cell to share identical data, yet, clear and definite method also do not had in the prior art; Realize data sharing between each cooperation cell, and then can't realize transparent transmission the down collaboration multiple spot of data.
Summary of the invention
The embodiment of the invention provides a kind of data sharing and sending method, Apparatus and system, in order to realize sending to data the sharing between each cooperation cell of UE.
The embodiment of the invention provides a kind of data sharing method, comprising:
Serving cell is determined the data that its needs of administering user equipment (UE) carry out the down collaboration multicast communication;
The transfer of data of determining is given each cooperation cell of said Serving cell.
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 with Serving cell under the user equipment (UE) receives the data that said Serving cell sends; And
Said data are handled; And
Send the data after handling to said UE.
The embodiment of the invention also provides the data sharing device in a kind of Serving cell, comprising:
Confirm the unit, be used to determine this Serving cell and administer the data that the needs of user equipment (UE) carry out the down collaboration multicast communication;
First transmitting element is used for the transfer of data of determining each cooperation cell to said Serving cell.
The embodiment of the invention also provides the data sending device in a kind of cooperation cell, comprising:
Receiving element is used to receive the data that the affiliated Serving cell of user equipment (UE) sends;
Second processing unit is used for said data are handled;
Second transmitting element is used for sending the data after handling to said UE.
The embodiment of the invention also provides a kind of data Transmission system, comprising: the data sharing device in the Serving cell and carry out the data sending device in each cooperation cell of down collaboration multicast communication with said Serving cell, wherein:
Said data sharing device is used to determine the data that its needs of administering UE carry out the down collaboration multicast communication; And give the said data sending device in said each cooperation cell with the transfer of data of determining;
Said data sending device is used to receive the data that said data sharing device sends; And said data are handled; And the data after said UE sends processing.
In the method that the embodiment of the invention provides; Serving cell is determined the data that its needs of administering UE carry out the down collaboration multicast communication; And with the transfer of data of determining each cooperation cell, thereby data the sharing between each cooperation cell of having realized sending to UE to Serving cell; And; After each cooperation cell of carrying out the down collaboration multicast communication with Serving cell receives the data that Serving cell sends; These data are handled, and sent the data after handling, thereby realized that all cooperation cell are to the identical identical processing of data execution to UE; And the data after will handling send to UE, and then have realized the transparent transmission to the down collaboration multiple spot of data.
Description of drawings
The flow chart of the data sharing 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 data sharing that Fig. 3 provides for the embodiment of the invention 1 and the flow chart of sending method;
The data sharing that Fig. 4 provides for the embodiment of the invention 2 and the flow chart of sending method;
The flow chart of the cooperation control information sending method that Fig. 5 provides for the embodiment of the invention 3;
The structural representation of the data sharing device in the Serving cell 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
In order to provide data the sharing between each cooperation cell of realizing sending to UE; 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 data sharing and sending method, Apparatus and system, below in conjunction with Figure of description the preferred embodiments of the present invention is described, and is to be understood that; Preferred embodiment described herein only is used for explanation and explains the present invention, and is 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 data sharing method, and is as shown in Figure 1, comprising:
Step S101, Serving cell are determined the data that its needs of administering UE carry out the down collaboration multicast communication.
Step S102, each cooperation cell of the transfer of data of determining being given Serving cell.
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 with Serving cell under the UE receive the data that Serving cell sends.
Step S202, the data that receive are handled.
Step S203, the data after UE sends processing.
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:
Present embodiment 1 proposes a kind of data sharing and sending method, and wherein, the data of sharing are source data, and promptly the Serving cell data that are transferred to each cooperation cell are source data, and are as shown in Figure 3, specifically comprise the steps:
Step S301, Serving cell are determined the source data that its needs of administering UE carry out the down collaboration multicast communication.
Step S302, the source data of confirming is transferred to each cooperation cell of this Serving cell.
In this step, can also be when the transmission sources data, the wireless network temporary identifier RNTI of this UE is transferred to each cooperation cell, be used for follow-uply being used for data are carried out scrambling process by each cooperation cell.
Concrete, can use X2 interface transmission sources data and the RNTI of UE between cell base station in this step.
Receive the source data of Serving cell transmission in each cooperation cell after, promptly realized to carry out the sharing of source data of down collaboration multicast communication.But before sending the data to UE; Serving cell need carry out a series of processing operation to data with other each cooperation cell; For example; Clearly definition needs the processing operation of execution to comprise in existing Rel.8/9/10 standard: chnnel coding, scrambling, modulation, generation demodulated reference signal DM-RS, precoding and physical resource mapping specifically describe as follows.
Step S303, source data is carried out chnnel coding, the data after obtaining encoding.
Specifically can determine the code word passage that source data is encoded, and use corresponding code word passage, source data encoded according to fixed modulation coding mode at first arriving the code word mapped identification according to transmission block.
Step S304, the data behind the coding are carried out scrambling, 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:
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],
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
In this step, the relevant parameter that generates scramble sequence can be confirmed before carrying out scramble sequence calculating, for example, can from the cooperation control information (follow-up being described in detail that be received in of the relevant control information of cooperating) 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, in above-mentioned steps S302, follow source data together to receive.
After determining scramble sequence, the data after using scramble sequence to coding are carried out scrambling, obtain the data after the scrambling.
Step S305, the data after the scrambling are modulated the data after obtaining modulating.
When modulating, use corresponding code word passage, modulate according to the data of fixed modulation coding mode after scrambling.
Step S306, generation DM-RS sequence.
The DM-RS of data is also generated by pseudo random sequence, and this pseudo random sequence initial value adopts following formula to confirm:
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 S304 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 S303-305.
Step S307, according to fixed precoding coefficient, data and DM-RS sequence after the modulation are carried out precoding, obtain data and the DM-RS sequence after the precoding after the precoding.
In this step, the precoding coefficient also can obtain from the cooperation control information that receives.
After the precoding processing in accomplishing this step, the data after promptly having obtained source data handled.
Step S308, according to fixed Resource Allocation Formula, comprising: the resource allocation type identification, resource frequency domain position information and resource time-domain position information are carried out the physical resource mapping to the 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 S309, 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 S310, 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 present embodiment 1; By Serving cell source data is sent to other each cooperation cell; Realized sharing of source data, and carried out identical handling process, the data after obtaining handling to the source data of sharing by each cooperation cell; And the data after will handling send to UE, have realized the transparent transmission to the down collaboration multiple spot of data.
Embodiment 2:
Present embodiment 2 proposes a kind of data sharing and sending method; Wherein, the data of sharing be to the data after the source data coding scrambling process, i.e. the Serving cell data of data after for scrambling process that source data is encoded that are transferred to each cooperation cell; As shown in Figure 4, specifically comprise the steps:
Step S401, Serving cell are determined the source data that its needs of administering UE carry out the down collaboration multicast communication.
Step S402, source data is carried out chnnel coding, the data after obtaining encoding.
Specifically can determine the code word passage that source data is encoded, and use corresponding code word passage, source data encoded according to fixed modulation coding mode at first arriving the code word mapped identification according to transmission block.
Step S403, the data behind the coding are carried out scrambling, 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:
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],
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
In this step, the relevant parameter that generates scramble sequence can be confirmed before carrying out scramble sequence calculating, for example, can from the cooperation control information (follow-up being described in detail that be received in of the relevant control information of cooperating) 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.
After determining scramble sequence, the data after using scramble sequence to coding are carried out scrambling, obtain the data after the scrambling.
Step S404, will obtain to the data after the scrambling of source data coding, be transferred to each cooperation cell of this Serving cell.
Concrete, can use the data after the X2 interface transfer encoding scrambling between cell base station in this step.
Receive the data of Serving cell transmission in each cooperation cell after, promptly realized to carry out the sharing of data of down collaboration multicast communication.But before sending the data to UE; Need carry out a series of processing operation to data; For example; Clearly definition needs the processing operation of execution to comprise in existing Rel.8/9/10 standard: chnnel coding, scrambling, modulation, generation demodulated reference signal DM-RS, precoding and physical resource mapping, for the processing operation that the data after the coding scrambling also need be carried out, specific descriptions as follows.
Step S405, the data after the scrambling are modulated the data after obtaining modulating.
When modulating, use corresponding code word passage, modulate according to the data of fixed modulation coding mode after scrambling.
Step S406, generation DM-RS sequence.
The DM-RS of data is also generated by pseudo random sequence, and this pseudo random sequence initial value adopts following formula to confirm:
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 S304 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 S405.
Step S407, according to fixed precoding coefficient, data and DM-RS sequence after the modulation are carried out precoding, obtain data and the DM-RS sequence after the precoding after the precoding.
In this step, the precoding coefficient also can obtain from the cooperation control information that receives.
After the precoding processing in accomplishing this step, the data after promptly having obtained source data handled.
Step S408, according to fixed Resource Allocation Formula, comprising: the resource allocation type identification, resource frequency domain position information and resource time-domain position information are carried out the physical resource mapping to the 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 S409, 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 S410, 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 present embodiment 2; To send to its each cooperation cell to the source data data after the scrambling of encoding by Serving cell, realize sharing of data; And carry out identical handling process to the data of sharing by each cooperation cell; Data after obtaining handling, and the data after will handling send to UE, have realized the transparent transmission to the down collaboration multiple spot of data.
In the foregoing description 1, what share between each cooperation cell is source data, compares the data of sharing among the embodiment 2 after the scrambling of source data coding; The data volume of source data is littler, so embodiment 1 scheme is compared embodiment 2 schemes; Interface bandwidth requirement to the transmission data is lower, and efficiency of transmission is higher, and; Consider that from the HARQ angle embodiment 1 scheme is more flexible; But; Because embodiment 1 scheme need all need be encoded and scrambling process to source data except that other each cooperation cell the service sub-district, so, compare embodiment 2 schemes; Taken the part computational resource of other cooperation cell; Be that embodiment 2 schemes are compared embodiment 1 scheme, lower to the computational resource requirements of other cooperation cell, and the efficient that the data of sharing are handled is higher.
The foregoing description 1 scheme and embodiment 2 schemes respectively have pluses and minuses, can select according to concrete application scenarios.
Embodiment 3:
For among the foregoing description 1 and the embodiment 2 before sending data to UE, data are handled the needed control information of operation, for example; Carry out chnnel coding, scrambling, modulation, generation demodulated reference signal DM-RS, precoding and physical resource and shine upon needed control information; Can before sending the data to UE, send to each cooperation cell, present embodiment 3 proposes a kind of cooperation control information sending method; Above-mentioned control information is sent to each cooperation cell, specifically comprises:
Confirm before sending data to UE, to be used for needed cooperation control information is handled and sent to data;
The cooperation control information is sent to each cooperation cell of data being carried out the down collaboration multicast communication.
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 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 on the 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 on the cell base station 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 5, comprising:
In step S501, the present embodiment 3; 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 during to the data after the source data coding scrambling process, the cooperation control information that sends to the affiliated Serving cell of UE comprises: Modulation and Coding Scheme indication information, DM-RS sequence indication, precoding indication information and Resource Allocation Formula indication information; The cooperation control information that sends to other each cooperation cell except that the service sub-district comprises: 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 are near the code word mapped identification;
The modulation scheme indication information comprises: modulation system indication information and transmission are near 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 3, 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 3, 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 S502, 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 3, 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 S503, 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 3, 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 3 to provide has promptly realized data are handled the distribution of needed Control Parameter between each cooperation cell.
Embodiment 4:
Based on same inventive concept, according to the data sharing method that the above embodiment of the present invention provides, correspondingly, the embodiment of the invention 4 also provides the data sharing device in a kind of Serving cell, and its structural representation is as shown in Figure 6, specifically comprises:
Confirm unit 601, be used to determine this Serving cell and administer the data that the needs of user equipment (UE) carry out the down collaboration multicast communication;
First transmitting element 602 is used for the transfer of data of determining each cooperation cell to said Serving cell.
Preferable, said first transmitting element 602 also is used for the wireless network temporary identifier RNTI of said UE is transferred to said each cooperation cell.
Preferable, also comprise:
First processing unit 603, the needs that are used to determine this Serving cell administration UE carry out after the data of down collaboration multicast communication said data being carried out chnnel coding the data after obtaining encoding;
Data to behind the coding are carried out scrambling, obtain the data after the scrambling;
Said first transmitting element specifically is used for each cooperation cell to said Serving cell of the transfer of data after the scrambling.
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 to receive the data that the affiliated Serving cell of user equipment (UE) sends;
Second transmitting element 703 is used for sending the data after handling to said UE.
Preferable, said second processing unit 702 specifically is used for said data are carried 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; And generation demodulated reference signal DM-RS sequence; And data and said DM-RS sequence after the modulation carried out precoding, obtain data and the DM-RS sequence after the precoding after the precoding.
Preferable, said receiving element 701 also is used to receive the wireless network temporary identifier RNTI of the said UE that said Serving cell sends;
Said second processing unit 702 specifically is used for physical identification PCI, resource time-domain position information, the RNTI of said UE and the q value information of corresponding code word 0 or 1 according to said Serving cell, generates scramble sequence; And the data after using said scramble sequence to coding carry out scrambling, obtain the data after the scrambling.
Preferable, said second processing unit 702 specifically is used for said data are modulated, the data after obtaining modulating; And generation DM-RS sequence; And data and said DM-RS sequence after the modulation carried out precoding, obtain data and the DM-RS sequence after the precoding after the precoding.
Preferable, said second transmitting element 703 specifically is used for 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 data sharing and the sending method 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: the data sharing device 801 in the Serving cell and carry out the data sending device 802 in each cooperation cell of down collaboration multicast communication with said Serving cell, wherein:
Said data sharing device 801 is used to determine the data that its needs of administering UE carry out the down collaboration multicast communication; And with the data sending device 802 of the transfer of data of determining to said each cooperation cell;
Said data sending device 802 is used to receive the data that said data sharing device 801 sends; And said data are handled; And the data after said UE sends processing.
In sum, the scheme that the embodiment of the invention provides comprises: Serving cell is determined the data that its needs of administering UE carry out the down collaboration multicast communication; And with the transfer of data of determining each cooperation cell to Serving cell.Also comprise: each cooperation cell of carrying out the down collaboration multicast communication with Serving cell under the UE receives the data that Serving cell sends; And the data that receive are handled; And the data after UE sends processing.The scheme that adopts the embodiment of the invention to provide, data the sharing between each cooperation cell of having realized sending to UE 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 (17)
1. a data sharing method is characterized in that, comprising:
Serving cell is determined the data that its needs of administering user equipment (UE) carry out the down collaboration multicast communication;
The transfer of data of determining is given each cooperation cell of said Serving cell.
2. the method for claim 1 is characterized in that, when giving each cooperation cell of said Serving cell with the transfer of data of determining, also comprises:
The wireless network temporary identifier RNTI of said UE is transferred to said each cooperation cell.
3. the method for claim 1 is characterized in that, Serving cell determine its administration UE needs carry out the data of down collaboration multicast communication after, also comprise:
Serving cell carries out chnnel coding to said data, the data after obtaining encoding;
Data to behind the coding are carried out scrambling, obtain the data after the scrambling;
Each cooperation cell with the transfer of data of determining is given said Serving cell is specially:
Transfer of data after the scrambling is given each cooperation cell of said Serving cell.
4. a data transmission method for uplink is characterized in that, comprising:
Each cooperation cell of carrying out the down collaboration multicast communication with Serving cell under the user equipment (UE) receives the data that said Serving cell sends; And
Said data are handled; And
Send the data after handling to said UE.
5. method as claimed in claim 4 is characterized in that, said data are handled, and specifically comprises:
Said data are carried out chnnel coding, the data after obtaining encoding;
Data to behind the coding are carried out scrambling, obtain the data after the scrambling;
Data to after the scrambling are modulated, the data after obtaining modulating;
Generate demodulated reference signal DM-RS sequence;
Data and said DM-RS sequence to after the modulation are carried out precoding, obtain data and the DM-RS sequence after the precoding after the precoding.
6. method as claimed in claim 5 is characterized in that, when each cooperation cell receives the data of said Serving cell transmission, also comprises:
Receive the wireless network temporary identifier RNTI of the said UE of said Serving cell transmission;
Data to behind the coding are carried out scrambling, obtain the data after the scrambling, specifically comprise:
According to physical identification PCI, resource time-domain position information, the RNTI of said UE and the q value information of corresponding code word 0 or 1 of said Serving cell, generate scramble sequence;
Data after using said scramble sequence to coding are carried out scrambling, obtain the data after the scrambling.
7. method as claimed in claim 4 is characterized in that, said data are handled, and specifically comprises:
Said data are modulated the data after obtaining modulating;
Generate the DM-RS sequence;
Data and said DM-RS sequence to after the modulation are carried out precoding, obtain data and the DM-RS sequence after the precoding after the precoding.
8. like the arbitrary described method of claim 4-7, it is characterized in that, send the data after handling, specifically comprise to said UE:
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.
9. the data sharing device in the Serving cell is characterized in that, comprising:
Confirm the unit, be used to determine this Serving cell and administer the data that the needs of user equipment (UE) carry out the down collaboration multicast communication;
First transmitting element is used for the transfer of data of determining each cooperation cell to said Serving cell.
10. device as claimed in claim 9 is characterized in that, said first transmitting element also is used for the wireless network temporary identifier RNTI of said UE is transferred to said each cooperation cell.
11. device as claimed in claim 9 is characterized in that, also comprises:
First processing unit, the needs that are used to determine this Serving cell administration UE carry out after the data of down collaboration multicast communication said data being carried out chnnel coding the data after obtaining encoding;
Data to behind the coding are carried out scrambling, obtain the data after the scrambling;
Said first transmitting element specifically is used for each cooperation cell to said Serving cell of the transfer of data after the scrambling.
12. the data sending device in the cooperation cell is characterized in that, comprising:
Receiving element is used to receive the data that the affiliated Serving cell of user equipment (UE) sends;
Second processing unit is used for said data are handled;
Second transmitting element is used for sending the data after handling to said UE.
13. device as claimed in claim 12 is characterized in that, said second processing unit specifically is used for said data are carried 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; And generation demodulated reference signal DM-RS sequence; And data and said DM-RS sequence after the modulation carried out precoding, obtain data and the DM-RS sequence after the precoding after the precoding.
14. device as claimed in claim 13 is characterized in that, said receiving element also is used to receive the wireless network temporary identifier RNTI of the said UE that said Serving cell sends;
Said second processing unit specifically is used for physical identification PCI, resource time-domain position information, the RNTI of said UE and the q value information of corresponding code word 0 or 1 according to said Serving cell, generates scramble sequence; And the data after using said scramble sequence to coding carry out scrambling, obtain the data after the scrambling.
15. device as claimed in claim 12 is characterized in that, said second processing unit specifically is used for said data are modulated, the data after obtaining modulating; And generation DM-RS sequence; And data and said DM-RS sequence after the modulation carried out precoding, obtain data and the DM-RS sequence after the precoding after the precoding.
16., it is characterized in that said second transmitting element specifically is used for data after the precoding and the DM-RS sequence after the precoding are carried out the physical resource mapping like the arbitrary described device of claim 12-15; And data and DM-RS sequence precoding after of the physical resource that uses mapping after UE sends precoding.
17. a data Transmission system is characterized in that, comprising: the data sharing device in the Serving cell and carry out the data sending device in each cooperation cell of down collaboration multicast communication with said Serving cell, wherein:
Said data sharing device is used to determine the data that its needs of administering user equipment (UE) carry out the down collaboration multicast communication; And give the said data sending device in said each cooperation cell with the transfer of data of determining;
Said data sending device is used to receive the data that said data sharing device sends; And said data are handled; And the data after said UE sends processing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110036957.8A CN102638851B (en) | 2011-02-12 | 2011-02-12 | A kind of data sharing and sending method, Apparatus and system |
| PCT/CN2012/071008 WO2012106993A1 (en) | 2011-02-12 | 2012-02-10 | Method, device, and system for sharing and transmitting data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110036957.8A CN102638851B (en) | 2011-02-12 | 2011-02-12 | A kind of data sharing and sending method, Apparatus and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102638851A true CN102638851A (en) | 2012-08-15 |
| CN102638851B CN102638851B (en) | 2016-04-27 |
Family
ID=46623040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110036957.8A Active CN102638851B (en) | 2011-02-12 | 2011-02-12 | A kind of data sharing and sending method, Apparatus and system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102638851B (en) |
| WO (1) | WO2012106993A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018127145A1 (en) * | 2017-01-06 | 2018-07-12 | 华为技术有限公司 | Communication method, apparatus and system |
| US10904872B2 (en) | 2016-06-29 | 2021-01-26 | Huawei Technologies Co., Ltd. | Communication method and apparatus, and system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080165755A1 (en) * | 2007-01-05 | 2008-07-10 | Interdigital Technology Corporation | Method and apparatus for transmitting and receiving common logical channel and dedicated logical channel transmissions via a high speed downlink shared channel |
| CN101754230A (en) * | 2008-12-17 | 2010-06-23 | 华为技术有限公司 | Carrier polymerizing method in FDD system and device thereof |
| CN101777940A (en) * | 2009-01-12 | 2010-07-14 | 华为技术有限公司 | Method, device and system for transmitting uplink information |
| CN101932091A (en) * | 2009-06-22 | 2010-12-29 | 中国移动通信集团公司 | Coordinated multi-point transmission system and method as well as relevant device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9215035B2 (en) * | 2008-12-08 | 2015-12-15 | Lg Electronics Inc. | Method of transmitting and receiving physical downlink shared channel in wireless communication system |
| CN101938300B (en) * | 2009-06-30 | 2015-07-22 | 中兴通讯股份有限公司 | Multi-point coordination-based data transmission method and device |
-
2011
- 2011-02-12 CN CN201110036957.8A patent/CN102638851B/en active Active
-
2012
- 2012-02-10 WO PCT/CN2012/071008 patent/WO2012106993A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080165755A1 (en) * | 2007-01-05 | 2008-07-10 | Interdigital Technology Corporation | Method and apparatus for transmitting and receiving common logical channel and dedicated logical channel transmissions via a high speed downlink shared channel |
| CN101754230A (en) * | 2008-12-17 | 2010-06-23 | 华为技术有限公司 | Carrier polymerizing method in FDD system and device thereof |
| CN101777940A (en) * | 2009-01-12 | 2010-07-14 | 华为技术有限公司 | Method, device and system for transmitting uplink information |
| CN101932091A (en) * | 2009-06-22 | 2010-12-29 | 中国移动通信集团公司 | Coordinated multi-point transmission system and method as well as relevant device |
Non-Patent Citations (1)
| Title |
|---|
| 3GPP: "《3GPP TS 36.211 V10.0.0》", 30 December 2010 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10904872B2 (en) | 2016-06-29 | 2021-01-26 | Huawei Technologies Co., Ltd. | Communication method and apparatus, and system |
| WO2018127145A1 (en) * | 2017-01-06 | 2018-07-12 | 华为技术有限公司 | Communication method, apparatus and system |
| US11147094B2 (en) | 2017-01-06 | 2021-10-12 | Huawei Technologies Co., Ltd. | Communication method and communications apparatus and system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012106993A1 (en) | 2012-08-16 |
| CN102638851B (en) | 2016-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| NZ750482A (en) | On-demand system information for wireless telecommunications | |
| EA023976B1 (en) | Mobile communication system, base station device, mobile station device, and mobile communication method | |
| JP2017505068A5 (en) | ||
| RU2012134826A (en) | METHODS AND DEVICE FOR COMPETITION-BASED PROVISION OF WIRELESS COMMUNICATION NETWORKS | |
| RU2013135680A (en) | BASIC RADIO STATION, USER TERMINAL AND RADIO COMMUNICATION METHOD | |
| CN104350796A (en) | Wireless communication system, wireless base station device, terminal device, and method for allocating wireless resources | |
| CN101385267A (en) | Method and apparatus for conveying control channel information in ofdma systems | |
| CN103731245A (en) | Confirming/non-confirming feedback information transmission method and device | |
| CN103378924A (en) | Method of determining transport block size and device thereof, synchronization method, apparatus and system | |
| CN115499925A (en) | Method, base station, terminal and storage medium for processing multi-transmission-point TRP data | |
| CN105992379B (en) | Scheduling method and terminal | |
| PH12019501596A1 (en) | Data transmission method and communication device | |
| US20220150913A1 (en) | Method and device for determining sr configuration, and storage medium | |
| MX2017007028A (en) | Method and managing device for allocating transmission resources in a wireless communications network. | |
| EP3324675B1 (en) | Uplink data transmission method and apparatus | |
| CN102006601B (en) | Method, system and device for sending collaboration data | |
| JP2019500783A (en) | Data transmission method and apparatus | |
| JP6118452B2 (en) | Frequency diversity transmission method for machine type communication | |
| CN104521261B (en) | Being provided in communication network can the method for Lawful intercept, user's set and base transceiver station | |
| KR20090092429A (en) | Apparatus and method for uplink cooperative transmission in a broadband wireless communication system | |
| CN108282313B (en) | Resource pool processing method and device | |
| CN110417528B (en) | D2D communication method and device | |
| CN102638851B (en) | A kind of data sharing and sending method, Apparatus and system | |
| CN104349488A (en) | Device and method for exchanging signaling information in multi-point cooperation | |
| US11606182B2 (en) | Transmissions with common location dependent control information for machine type communication (MTC) data and mobile broadband user equipment (UE) data |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |