CN101924609A

CN101924609A - Processing method of uplink data in coordinated multipoint transmission and related device

Info

Publication number: CN101924609A
Application number: CN2009100869887A
Authority: CN
Inventors: 高有军; 姜大洁; 胡臻平; 崔春风
Original assignee: China Mobile Communications Group Co Ltd
Current assignee: China Mobile Communications Group Co Ltd
Priority date: 2009-06-12
Filing date: 2009-06-12
Publication date: 2010-12-22
Anticipated expiration: 2029-06-12
Also published as: CN101924609B

Abstract

The invention discloses a processing method of uplink data in coordinated multipoint transmission and a related device, aiming to solve the problems of larger load of a transmission interface between a serving base station and a coordinating base station and longer time spent in processing uplink data by the serving base station in the prior art. The method comprises the following steps: receiving the uplink data sent from a mobile terminal by the serving base station, and sending feedback information used for confirming that the uplink data are received accurately to the mobile terminal when being capable of demodulating decodes for the received uplink data accurately; and otherwise, acquiring the related information of the uplink data which is sent by the mobile terminal and received by the coordinating base station by the serving base station from the coordinating base station when being incapable of demodulating decodes for the received uplink data accurately, and sending feedback information to the mobile terminal based on the received related information of the uplink data and the uplink data sent by the mobile terminal and received thereby.

Description

The processing method of upstream data and relevant apparatus in the cooperative multipoint transmission

Technical field

The present invention relates to wireless communication technology field, relate in particular to the processing method and the relevant apparatus of upstream data in a kind of cooperative multipoint transmission.

Background technology

In existing mobile communications system, because disturb the adjacent area, the user's communications that is in the cell edge position is second-rate.In order to improve the communication quality of Cell Edge User, prior art has proposed cooperative multipoint transmission (CoMP, Coordinated multi-point transmission/reception) technology motion, the basic functional principle of this technology is to being in the relatively poor user of cell edge communication quality, the neighbor cell fellowship of this user's Serving cell and Serving cell is to this user's data transmission, to improve the communication quality of Cell Edge User, wherein participate in the neighbor cell of the Serving cell of Cell Edge User transfer of data is called as cooperation cell.

Please refer to accompanying drawing 1, be the schematic diagram of upstream data handling principle in the CoMP technology.What participate in collaborative transmission can be the different districts that same base station covers, and also can be the sub-district of different base station covering.When the sub-district of different base station coverage participates in collaborative transmission, coverage is that the base station of Serving cell is called as serving BS, coverage is that the base station of cooperation cell is called as cooperative base station, the corresponding a plurality of cooperative base station of a common portable terminal, more simple and clear in order to describe, accompanying drawing 1 is the serving BS of subscriber terminal equipment UE 1 with eNB1, eNB2 is that the cooperative base station of UE1 is the processing procedure that example is introduced upstream data in the collaborative transmission, other cooperative base station are similar to eNB2 to the reciprocal process between the serving BS eNB1, here no longer describe in detail.Please refer to accompanying drawing 2, for the upstream data that the CoMP motion relates to is worked in coordination with the groundwork flow process of transmitting:

Step 200, serving BS eNB1 and cooperative base station eNB2 receive the upstream data that UE1 sends;

Step 201, cooperative base station eNB2 sends to serving BS eNB1 with the upstream data that receives;

Step 202, the upstream data that the cooperative base station eNB2 that serving BS eNB1 will receive in upstream data that the UE1 that receives in step 200 sends and step 201 sends merges processing;

Step 203, when the upstream data of serving BS eNB1 after can merging processing to step 202 carries out correct demodulation coding, send ACK message to UE1, comprise the uplink transmission resource (UL grant) that HARQ process (Hybrid Automatic Repeat Request Process) identified and distributed to UE1 in this ACK message, wherein the HARQ process identification (PID) is used for indicating UE1 to send data in time slot corresponding; When the upstream data after can not being combined processing carries out correct demodulation coding, send NACK message.

UE1 can be on the corresponding time slot of the interior HARQ process identification (PID) of next round trip cycle (RTT, Round Trip Time) after receiving ACK message, and the uplink transmission resource UL grant that uses eNB1 to distribute sends new upstream data to eNB1; If the feedback message that UE1 receives is a NACK message, then use original uplink transmission resource to resend the data that sent in the step 200 on the corresponding time slot of HARQ process identification (PID) in the cycle at next RTT.

Because generally, the data collaborative transmission of a plurality of cooperative base station fellowships to portable terminal arranged, so each cooperative base station sends upstream data that the UE1 that receives sends to serving BS and will take transfer resource between a large amount of base stations in the step 201.

In addition, regulation according to LTE R8 standard, the RTT cycle is 8ms, serving BS need send the ACL/NACK feedback message to UE in the 4ms after UE sends data, in existing C oMP scheme, before the step 202 of serving BS in carrying out accompanying drawing 2, can wait for the user uplink data that cooperative base station is sent, if owing to reasons such as transmission data delay between the base station are bigger, serving BS receives data and data is merged the processing consumed time and surpasses 4s (promptly can not send feedback message to UE in the 4s after UE sends data), will make the data re-transmission time lengthening of UE, making further influences the user's communications quality.

Summary of the invention

The embodiment of the invention provides the processing method of upstream data in a kind of cooperative multipoint transmission, handles the upstream data long problem that expends time in order to solve in the prior art between the serving BS and cooperative base station the big and serving BS of coffret load.

Accordingly, the embodiment of the invention also provides the treatment system of upstream data in a kind of cooperative multipoint transmission, and a kind of base station that can realize the processing method of upstream data in the above-mentioned cooperative multipoint transmission.

The technical scheme that the embodiment of the invention provides is as follows:

The processing method of upstream data in a kind of cooperative multipoint transmission comprises: the upstream data that the serving BS mobile terminal receive is sent; And in the time can carrying out correct demodulation coding, send to described portable terminal and to be used to the feedback message of confirming that upstream data has correctly been received the upstream data that receives; And in the time can not carrying out correct demodulation coding, be used for the notification message that the notification service base station can not be carried out correct demodulation coding to upstream data to the cooperative base station transmission to the upstream data that receives; The demodulation coding result of the described upstream data correspondence that the cooperative base station that serving BS reception cooperative base station is sent according to described notification message receives; Serving BS is receiving after cooperative base station sends the demodulation coding result of upstream data correspondence, sends to described portable terminal to be used to the feedback message of confirming that upstream data has correctly been received.

A kind of cooperative multicast system comprises the serving BS of portable terminal and participates in the collaborative cooperative base station of transmitting that wherein: serving BS is used for the upstream data that mobile terminal receive is sent; In the time can carrying out correct demodulation coding to the upstream data that receives, send to described portable terminal and to be used to the feedback message of confirming that upstream data has correctly been received, in the time can not carrying out correct demodulation coding, be used for the notification message that the notification service base station can not be carried out correct demodulation coding to upstream data to the cooperative base station transmission to the upstream data that receives; And the demodulation coding result who receives the described upstream data correspondence that cooperative base station sends according to described notification message; Receiving after cooperative base station sends the demodulation coding result of upstream data correspondence, sending to described portable terminal and be used to the feedback message of confirming that upstream data has correctly been received; Cooperative base station is used for the upstream data that mobile terminal receive is sent, and before receiving the notification message that serving BS sends, forbids sending to serving BS the demodulation coding result of described upstream data or upstream data correspondence.

A kind of base station that is used for cooperative multipoint transmission comprises: first receiving element is used for the upstream data that mobile terminal receive is sent; First feedback unit is used in the time can carrying out correct demodulation coding to the upstream data that first receiving element receives, and is used to the feedback message of confirming that upstream data has correctly been received to described portable terminal transmission; Notification unit is used in the time can not carrying out correct demodulation coding to the upstream data that first receiving element receives, and sends to cooperative base station to be used for the notification message that the notification service base station can not be carried out correct demodulation coding to upstream data; Second receiving element is used to receive the demodulation coding result of the described upstream data correspondence that cooperative base station sends according to described notification message; Second feedback unit is used for receiving after cooperative base station sends the demodulation coding result of upstream data correspondence at second receiving element, sends to described portable terminal to be used to the feedback message of confirming that upstream data has correctly been received; Transmitting element is used for forbidding sending to other base stations the demodulation coding result of upstream data or upstream data correspondence before being used for of receiving that serving BS sends, the notification service base station can not carry out the notification message of correct demodulation coding to upstream data; After receiving the notification message that serving BS sends, send the demodulation coding result of upstream data correspondence to serving BS.

The processing method of upstream data in a kind of cooperative multipoint transmission comprises: the upstream data that the serving BS mobile terminal receive is sent; And in the time can carrying out correct demodulation coding, send to described portable terminal and to be used to the feedback message of confirming that upstream data has correctly been received the upstream data that receives; And in the time can not carrying out correct demodulation coding, be used for the notification message that the notification service base station can not be carried out correct demodulation coding to upstream data to the cooperative base station transmission to the upstream data that receives; The described upstream data that the described cooperative base station that serving BS reception cooperative base station is sent according to described notification message receives; And the upstream data that cooperative base station is sent and the upstream data that self receives merge processing, and the upstream data after can being combined processing is when carrying out correct demodulation coding, sends to described portable terminal to be used to the feedback message of confirming that upstream data has correctly been received; And the upstream data after can not being combined processing is when carrying out correct demodulation coding, sends to described portable terminal to be used to the feedback message of confirming that upstream data is not correctly received.

A kind of cooperative multicast system comprises the serving BS of portable terminal and participates in the collaborative cooperative base station of transmitting that wherein: serving BS is used for the upstream data that mobile terminal receive is sent; In the time can carrying out correct demodulation coding, send to described portable terminal and to be used to the feedback message of confirming that upstream data has correctly been received the upstream data that receives; In the time can not carrying out correct demodulation coding, be used for the notification message that the notification service base station can not be carried out correct demodulation coding to upstream data to the cooperative base station transmission to the upstream data that receives; And receive the described upstream data that cooperative base station is sent according to described notification message; And the upstream data that cooperative base station is sent and the upstream data that self receives merge processing, and the upstream data after can being combined processing is when carrying out correct demodulation coding, sends to described portable terminal to be used to the feedback message of confirming that upstream data has correctly been received; And the upstream data after can not being combined processing is when carrying out correct demodulation coding, sends to described portable terminal to be used to the feedback message of confirming that upstream data is not correctly received; Cooperative base station is used for the upstream data that mobile terminal receive is sent, and before receiving the notification message that serving BS sends, forbids sending to serving BS the demodulation coding result of described upstream data or upstream data correspondence.

A kind of base station that is used for cooperative multipoint transmission comprises: first receiving element is used for the upstream data that mobile terminal receive is sent; First feedback unit is used in the time can carrying out correct demodulation coding to the upstream data that first receiving element receives, and is used to the feedback message of confirming that upstream data has correctly been received to described portable terminal transmission; Notification unit is used in the time can not carrying out correct demodulation coding to the upstream data that first receiving element receives, and sends to cooperative base station to be used for the notification message that the notification service base station can not be carried out correct demodulation coding to upstream data; Second receiving element is used to receive the described upstream data that cooperative base station is sent according to described notification message; Merge processing unit, be used for the upstream data that the upstream data that second receiving element is received and first receiving element receive and merge processing; Second feedback unit is used for can being combined upstream data after processing unit merge to be handled when carrying out correct demodulation coding, sends to described portable terminal to be used to the feedback message of confirming that upstream data has correctly been received; The 3rd feedback unit is used for can not being combined upstream data after processing unit merge to be handled when carrying out correct demodulation coding, sends to described portable terminal to be used to the feedback message of confirming that upstream data is not correctly received; Transmitting element is used for forbidding sending to other base stations the demodulation coding result of upstream data or upstream data correspondence before being used for of receiving that serving BS sends, the notification service base station can not carry out the notification message of correct demodulation coding to upstream data; Receiving after serving BS sends described notification message, send upstream data to serving BS.

The processing method of upstream data in a kind of cooperative multipoint transmission, comprise: the upstream data that the serving BS mobile terminal receive is sent, and in the time can carrying out correct demodulation coding, send to described portable terminal and to be used to the feedback message of confirming that upstream data has correctly been received the upstream data that receives; And in the time can not carrying out correct demodulation coding to the upstream data that receives, be used for can the described cooperative base station in notification service base station carry out correct demodulation coding to the upstream data that described portable terminal sends message according to what cooperative base station was sent, can carry out the cooperative base station request demodulation coding result of correct demodulation coding to described upstream data at least one; Serving BS receives the demodulation coding result that cooperative base station is sent according to described request, and is receiving after cooperative base station sends the demodulation coding result, sends to described portable terminal to be used to the feedback message of confirming that upstream data has correctly been received.

A kind of cooperative multicast system, comprise the serving BS of portable terminal and participate in the collaborative cooperative base station of transmitting, wherein: serving BS, be used for the upstream data that mobile terminal receive is sent, in the time can carrying out correct demodulation coding, send to described portable terminal and to be used to the feedback message of confirming that upstream data has correctly been received the upstream data that receives; In the time can not carrying out correct demodulation coding to the upstream data that receives, be used for can the described cooperative base station in notification service base station carry out correct demodulation coding to described upstream data message according to what cooperative base station was sent, can carry out the cooperative base station request demodulation coding result of correct demodulation coding to described upstream data at least one; Receive the demodulation coding result that cooperative base station is sent according to described request; Receiving after cooperative base station sends the demodulation coding result, sending to described portable terminal and be used to the feedback message of confirming that upstream data has correctly been received; Cooperative base station, be used for the upstream data that mobile terminal receive is sent, and after to the upstream data demodulation coding that receives, send to serving BS and to be used for correct demodulation coding be carried out in notification service base station self can to the upstream data that described portable terminal sends message; Before the request that receives serving BS, forbid sending the demodulation coding result of described upstream data or upstream data correspondence to serving BS.

A kind of base station that is used for cooperative multipoint transmission comprises: first receiving element is used for the upstream data that mobile terminal receive is sent; First feedback unit is used in the time can carrying out correct demodulation coding to the upstream data that first receiving element receives, and is used to the feedback message of confirming that upstream data has correctly been received to described portable terminal transmission; Second receiving element is used to receive can the described cooperative base station in notification service base station carry out correct demodulation coding to the upstream data that described portable terminal sends the message that is used for that other base stations send; Request unit, be used in the time can not carrying out correct demodulation coding the upstream data that first receiving element receives, according to the message that second receiving element receives, can carry out other base station requests demodulation codings result of correct demodulation coding to the upstream data that described portable terminal sends at least one; The 3rd receiving element is used to receive the demodulation coding result that send according to the request of request unit other base stations; Second feedback unit is used for after the 3rd receiving element receives the demodulation coding result, is used to the feedback message of confirming that upstream data has correctly been received to described portable terminal transmission; First transmitting element is used for being used for correct demodulation coding be carried out in notification service base station self can to the upstream data that portable terminal sends message to the serving BS transmission; Second transmitting element was used for before the request that receives serving BS, forbade sending to serving BS the demodulation coding result of upstream data or upstream data correspondence; After the request that receives serving BS, send the demodulation coding result of upstream data correspondence to serving BS.

The processing method of upstream data in a kind of cooperative multipoint transmission, comprise: the upstream data that the serving BS mobile terminal receive is sent, and in the time can carrying out correct demodulation coding, send to described portable terminal and to be used to the feedback message of confirming that upstream data has correctly been received the upstream data that receives; And in the time can not carrying out correct demodulation coding to the upstream data that receives, be used for can the described cooperative base station in notification service base station carry out correct demodulation coding to described upstream data message according to what cooperative base station was sent, when definite all cooperative base station all can not be carried out correct demodulation coding to the upstream data that receives, the upstream data that receives to the described cooperative base station of cooperative base station request; Serving BS merges processing to cooperative base station according to described request upstream data of sending and the upstream data that self receives, and the upstream data after can being combined processing is when carrying out correct demodulation coding, sends to described portable terminal to be used to the feedback message of confirming that upstream data has correctly been received; And the upstream data after can not being combined processing is when carrying out correct demodulation coding, sends to described portable terminal to be used to the feedback message of confirming that upstream data is not correctly received.

A kind of cooperative multicast system, comprise the serving BS of portable terminal and participate in the collaborative cooperative base station of transmitting, wherein: serving BS, be used for the upstream data that mobile terminal receive is sent, in the time can carrying out correct demodulation coding, send to described portable terminal and to be used to the feedback message of confirming that upstream data has correctly been received the upstream data that receives; In the time can not carrying out correct demodulation coding to the upstream data that receives, be used for can the described cooperative base station in notification service base station carry out correct demodulation coding to described upstream data message according to what cooperative base station was sent, when definite all cooperative base station all can not be carried out correct demodulation coding to the upstream data that receives, the upstream data that receives to the described cooperative base station of cooperative base station request; Cooperative base station is merged processing according to described request upstream data of sending and the upstream data that self receives, and the upstream data after can being combined processing is when carrying out correct demodulation coding, sends to described portable terminal to be used to the feedback message of confirming that upstream data has correctly been received; And the upstream data after can not being combined processing is when carrying out correct demodulation coding, sends to described portable terminal to be used to the feedback message of confirming that upstream data is not correctly received; Cooperative base station, be used for the upstream data that mobile terminal receive is sent, and after to the upstream data demodulation coding that receives, send to serving BS and to be used for correct demodulation coding be carried out in notification service base station self can to the upstream data that described portable terminal sends message; Before the request that receives serving BS, forbid sending the demodulation coding result of described upstream data or upstream data correspondence to serving BS.

A kind of base station that is used for cooperative multipoint transmission comprises: first receiving element is used for the upstream data that mobile terminal receive is sent; First feedback unit is used in the time can carrying out correct demodulation coding to the upstream data that first receiving element receives, and is used to the feedback message of confirming that upstream data has correctly been received to described portable terminal transmission; Second receiving element is used to receive can the described cooperative base station in notification service base station carry out correct demodulation coding to the upstream data that described portable terminal sends the message that is used for that cooperative base station sends; Request unit, be used in the time can not carrying out correct demodulation coding the upstream data that first receiving element receives, the message that receives according to second receiving element, when definite all cooperative base station all can not be carried out correct demodulation coding to the upstream data that receives, the upstream data that receives to the described cooperative base station of cooperative base station request; The 3rd receiving element is used to receive the upstream data that cooperative base station is sent according to the request of request unit; Merge processing unit, be used for the upstream data that the upstream data that the 3rd receiving element is received and first receiving element receive and merge processing; Second feedback unit is used for can being combined upstream data after processing unit merge to be handled when carrying out correct demodulation coding, sends to described portable terminal to be used to the feedback message of confirming that upstream data has correctly been received; The 3rd feedback unit is used for can not being combined upstream data after processing unit merge to be handled when carrying out correct demodulation coding, sends to described portable terminal to be used to the feedback message of confirming that upstream data is not correctly received; First transmitting element is used for being used for correct demodulation coding be carried out in notification service base station self can to the upstream data that portable terminal sends message to the serving BS transmission; Second transmitting element was used for before the request that receives serving BS, forbade sending to serving BS the demodulation coding result of upstream data or upstream data correspondence; After the request that receives serving BS, send upstream data to serving BS.

The embodiment of the invention, sends to portable terminal and to be used to the feedback message of confirming that upstream data is correctly received when the upstream data that can receive self carries out correct demodulation coding by serving BS; In the time can not carrying out correct demodulation coding to the upstream data that receives, obtain the relevant information of the upstream data that described portable terminal that described cooperative base station receives sends from cooperative base station, and according to the relevant information of the upstream data that acquires with self receive the upstream data that portable terminal sends, send feedback message to portable terminal, saved the transfer resource of cooperative base station between the base station that serving BS transmission upstream data takies, meanwhile, saved and wait for that cooperative base station sends upstream data and is combined and handle the time that takies.

Description of drawings

Fig. 1 is the schematic diagram of upstream data handling principle in the existing CoMP technology motion;

The collaborative groundwork flow chart that transmits of upstream data that Fig. 2 relates to for the CoMP motion;

Fig. 3 is the main realization principle flow chart of the embodiment of the invention;

Fig. 4 is the flow chart of the processing method of upstream data in the cooperative multipoint transmission of embodiment of the invention proposition;

Fig. 5 is the flow chart of the processing method of upstream data in the another kind of cooperative multipoint transmission of embodiment of the invention proposition;

First kind of structural representation that is used for the base station of cooperative multipoint transmission that Fig. 6 provides for the embodiment of the invention;

Second kind of structural representation that is used for the base station of cooperative multipoint transmission that Fig. 7 provides for the embodiment of the invention;

Fig. 8 provide for the embodiment of the invention the third be used for the structural representation of the base station of cooperative multipoint transmission;

The 4th kind of structural representation that is used for the base station of cooperative multipoint transmission that Fig. 9 provides for the embodiment of the invention.

Embodiment

Because in existing C oMP motion, at serving BS according to the communications of Mobile Terminals quality, judge need to portable terminal work in coordination with the transmission after, in the predetermined collaborative transmitting continuous time, the upstream data that the portable terminal no matter whether serving BS can receive self sends carries out correct demodulation coding to be handled, need all to wait for that cooperative base station sends the upstream data that this portable terminal of receiving sends, and the upstream data that cooperative base station is sent and the upstream data that self receives merge processing, and the upstream data after being combined again carries out demodulation coding.

The upstream data that the embodiment of the invention sends by the portable terminal that can receive self at serving BS carries out correct demodulation coding when handling, with carrying be send portable terminal being used for of distributing next time transmitting uplink data resource that upstream data uses be used to confirm that the feedback message that data are correctly received sends to portable terminal, and when the upstream data that the portable terminal that serving BS can not receive self sends carries out correct demodulation coding processing, from cooperative base station, obtain upstream data again, rather than cooperative base station is behind the upstream data that receives the portable terminal transmission, all need this upstream data is offered serving BS, to solve the more problem of transfer resource that takies in the existing scheme between serving BS and the cooperative base station.

Be explained in detail to the main realization principle of embodiment of the invention technical scheme, embodiment and to the beneficial effect that should be able to reach below in conjunction with each accompanying drawing.

When the upstream data that the different districts in same base station range sends portable terminal is handled, coverage is that the base station of Serving cell and cooperation cell merges processing to the upstream data that Serving cell and cooperation cell receive, and sends feedback message according to merging the result who handles to portable terminal.Do not need the upstream data of transmission portable terminal between each base station like this, thereby do not have the problem that takies the transfer resource between the base station in the background technology.The application relates generally to Serving cell and cooperation cell is the situation of different base station coverage.

As shown in Figure 3, the main realization principle process of the embodiment of the invention is as follows:

Step 10, the upstream data that the serving BS mobile terminal receive is sent;

Step 20, serving BS send to described portable terminal and to be used to the feedback message of confirming that upstream data is correctly received in the time can carrying out correct demodulation coding to the upstream data that receives in the step 10;

Step 30, serving BS obtain the relevant information of the upstream data that described portable terminal that described cooperative base station receives sends again from cooperative base station in the time can not carrying out correct demodulation coding to the upstream data that receives in the step 10, enter step 40;

The relevant information of the upstream data that step 40, serving BS acquire according to step 30 and self receive the upstream data that portable terminal sends sends feedback message to described portable terminal.

To introduce an embodiment in detail and come the main realization principle of the inventive method is explained in detail and illustrates according to foregoing invention principle of the present invention below.

Embodiment one

With the example in the background technology is example, eNB1 is the serving BS of subscriber terminal equipment UE 1, and eNB2 is the cooperative base station of this subscriber terminal equipment UE 1, please refer to accompanying drawing 4, be the flow chart of the processing method of upstream data in the cooperative multipoint transmission of present embodiment proposition, its concrete processing procedure is as follows:

Step 400, serving BS eNB1 and cooperative base station eNB2 receive the upstream data UL data1 that UE1 sends respectively on HARQ process identification (PID) HARQ-ID1 time slot corresponding, described upstream data is that portable terminal is sent according to the pre-assigned transmitting uplink data resource of eNB1;

Step 401, serving BS eNB1 judges whether that the upstream data UL data1 that can receive self carries out correct demodulation coding, when determining to carry out correct demodulation coding to this upstream data, no longer wait for the upstream data that UE1 that eNB2 that cooperative base station eNB2 sends receives sends, but enter step 402, in the time can not carrying out correct demodulation coding, enter step 403 to this upstream data;

Step 402, serving BS eNB1 sends to UE1 and is used to the ACK message of confirming that upstream data is correctly received, be included as being used for of UE1 distribution in the described ACK message next time in the employed transmitting uplink data resource of HARQ-ID1 time slot corresponding transmission upstream data UL Grant, processing procedure end;

Step 403, serving BS eNB1 sends to cooperative base station eNB2 and is used for the notification message that notification service base station eNB 1 can not be carried out correct demodulation coding to upstream data, the sign that comprises portable terminal in the described notification message, portable terminal sends the HARQ process identification (PID) of the time slot correspondence of described upstream data use, participate in the cell ID (Cell ID) of cooperation, and redundancy versions (Redundancy version) waits other information, described request message can be NACK message, behind the cooperative base station upstream data that portable terminal sends in receiving step 400, unless receive the above-mentioned notification message of serving BS, otherwise upstream data do not sent to serving BS;

Step 404, cooperative base station eNB2 is according to the sign of the portable terminal in the notification message that receives in the step 403, HARQ process identification (PID) and cell ID find and self receive and the relevant information of the upstream data that the mobile terminal UE 1 of storage sends on the time slot of HARQ process identification (PID), and the relevant information of the upstream data that finds sent to serving BS eNB1, after wherein cooperative base station eNB2 receives the upstream data of UE1 transmission in step 400, following 2 kinds of processing schemes can be arranged: (1) only keeps the original physical layer bit stream of upstream data itself, is left intact; (2) in the time can carrying out correct demodulation coding to the upstream data that receives, keep the result that demodulation coding obtains, the demodulation coding result can be medium access control layer protocol data cell (MAC PDU, Media Access Control Protocol Data Unit), also can be extended formatting; Otherwise the original physical layer bit stream that still keeps upstream data itself.

When cooperative base station eNB2 adopted first kind of processing scheme or adopts second kind of processing scheme demodulation coding incorrect, the upstream data relevant information was a upstream data itself; Correctly during demodulation coding, the relevant information of upstream data is the MAC PDU that demodulation coding obtains in adopting second kind of scheme.

Step 405, the upstream data that serving BS eNB1 sends according to the cooperative base station eNB2 that receives upstream data relevant information of sending and the UE1 that self receives, send feedback message to UE1, be specially: serving BS eNB1 in the upstream data relevant information that receives when upstream data being carried out MAC PDU that demodulation coding obtains, send to UE1 and to be used to the feedback message ACK that confirms that upstream data is correctly received, be included as being used for that UE1 distributes among this feedback message ACK on the HARQ-ID1 time slot corresponding, to send the employed transmitting uplink data resource of upstream data UL Grant next time;

During the original physical layer bit stream of the upstream data that the UE1 that serving BS eNB1 receives for cooperative base station eNB2 in the relevant information of the upstream data of asking from cooperative base station eNB2 sends itself, the upstream data that upstream data of asking and the portable terminal that self receives are sent merges, and the upstream data after can being combined is when carrying out correct demodulation coding, send to UE1 and to be used to the feedback message ACK that confirms that upstream data is correctly received, be included as the employed transmitting uplink data resource of the transmission upstream data UL Grant on the HARQ-ID1 time slot corresponding next time that is used for of UE1 distribution among this feedback message ACK, processing procedure finishes; Otherwise, if serving BS eNB1 is after the upstream data that upstream data of asking and the portable terminal that self receives are sent merges, when the upstream data after can not being combined carries out correct demodulation coding, send to UE1 and to be used to the feedback message NACK that confirms that upstream data is not correctly received, processing procedure finishes.

In the scheme that the embodiment of the invention proposes, when the upstream data that serving BS is sent at the portable terminal that can receive self carries out correct demodulation coding, need not the upstream data of waiting for that cooperative base station is sent, and need not the upstream data that upstream data that self is received and cooperative base station send and merge processing, just can send feedback message to portable terminal; Cooperative base station unless obtain the request of serving BS, otherwise does not send to serving BS with upstream data after receiving the upstream data that portable terminal sends.Adopt such scheme to save the transfer resource of cooperative base station between the base station that serving BS transmission upstream data takies on the one hand; On the other hand, saved wait cooperative base station transmission upstream data and be combined and handled the time that takies, reduced because serving BS is handled the probability of the overtime portable terminal re-transmission upstream data that causes.

Embodiment two

In order to reduce in embodiment one, when the upstream data UL data1 that serving BS eNB1 sends on the HARQ-ID1 time slot corresponding at the UE1 that can not receive self carries out correct demodulation coding, eNB2 sends a request message to cooperative base station, and the relevant information that receives the upstream data that cooperative base station eNB2 sends according to request message load pressure that the X2 interface between serving BS eNB1 and the cooperative base station eNB2 is caused, present embodiment has proposed another kind of serving BS when the upstream data of the portable terminal transmission that can not receive self carries out correct demodulation coding, obtain the scheme of upstream data relevant information from cooperative base station, detailed process please refer to accompanying drawing 5

Step 500, serving BS eNB1 and cooperative base station eNB2 receive the upstream data UL data1 that UE1 sends respectively on HARQ process identification (PID) HARQ-ID1 time slot corresponding, described upstream data is that portable terminal is sent according to the pre-assigned transmitting uplink data resource of eNB1;

Step 501, serving BS eNB1 judges whether that the upstream data UL data1 that can receive self carries out correct demodulation coding, when determining to carry out correct demodulation coding to this upstream data, no longer wait for the upstream data that UE1 that eNB2 that cooperative base station eNB2 sends receives sends, but enter step 502, in the time can not carrying out correct demodulation coding, enter step 503 to this upstream data;

Step 502, serving BS eNB1 sends to UE1 and is used to the ACK message of confirming that upstream data is correctly received, be included as being used for of UE1 distribution in the described ACK message next time in the employed transmitting uplink data resource of HARQ-ID1 time slot corresponding transmission upstream data UL Grant, processing procedure end;

Step 503, serving BS eNB1 is used for can notification service base station eNB 1 described cooperative base station eNB2 carry out correct demodulation coding to the upstream data that described portable terminal sends message according to what cooperative base station eNB2 sent, relevant information to cooperative base station eNB2 request upstream data, after wherein above-mentioned announcement information is the cooperative base station eNB2 upstream data that UE1 sends in receiving step 500, determine and self can carry out sending behind the correct demodulation coding the upstream data that UE1 sends, in the present embodiment, behind the cooperative base station upstream data that portable terminal sends in receiving step 500, need not needs upstream data is sent to serving BS as the technology in the existing motion.Be specially, the notification message that serving BS eNB1 sends according to cooperative base station eNB2, to can carrying out the cooperative base station request demodulation coding result of correct demodulation coding, and after asking the demodulation coding result, enter step 504 to the upstream data that UE1 in the step 500 sends; When the notification message of sending according to cooperative base station knows that all cooperative base station all can not be carried out correct demodulation coding to the upstream data that receives, the upstream data that the UE1 that receives to the described cooperative base station of at least one cooperative base station request sends, the mode of request upstream data has multiple, for example, serving BS eNB1 sends to cooperative base station eNB2 and is used to obtain the request-related information message of UE1 at the upstream data of HARQ-ID1 time slot corresponding transmission, the sign UE1 that comprises portable terminal in the described request message, portable terminal sends the HARQ process identification (PID) of the time slot correspondence of described upstream data use, and the cell ID that participates in cooperation, enter step 505;

Step 504, serving BS eNB1 sends to UE1 and is used to the ACK message of confirming that upstream data is correctly received, be included as being used for of UE1 distribution in the described ACK message next time in the employed transmitting uplink data resource of HARQ-ID1 time slot corresponding transmission upstream data UL Grant, handling process end;

Step 505, the upstream data that upstream data that the cooperative base station eNB2 that serving BS eNB1 will ask sends and the UE1 that self receives send merges, and the upstream data after can being combined is when carrying out correct demodulation coding, be used to confirm that to the portable terminal transmission upstream data is correctly received feedback message ACK, be included as being used for that portable terminal distributes in this feedback message sends the employed transmitting uplink data resource of upstream data UL Grant next time, and handling process finishes; Otherwise, serving BS eNB1 is after the upstream data that upstream data that the cooperative base station eNB2 that will ask sends and the UE1 that self receives send merges, when the upstream data after can not being combined carries out correct demodulation coding, send to portable terminal and to be used to the feedback message NACK that confirms that upstream data is not correctly received, handling process finishes.Present embodiment is that example is introduced so that a cooperative base station eNB2 only to be arranged, the notification message that serving BS is sent according to cooperative base station in step 503 is known when all cooperative base station all can not be carried out correct demodulation coding to the upstream data that receives, can be to a plurality of cooperative base station request upstream datas, and to from a plurality of cooperative base station requests to upstream data and the upstream data sent of the UE1 that self receives merge.

In the present embodiment, cooperative base station after receiving the data up and down that portable terminal sends, judge can carry out correct demodulation coding to upstream data after, the notification service base station; When the upstream data that serving BS is sent at the portable terminal that can not receive self carries out correct demodulation coding, can be from can the upstream data that identical time slot sends carries out the cooperative base station of correct demodulation coding, obtaining the demodulation coding result to this portable terminal, compare with the scheme among the embodiment one, when the upstream data that serving BS is sent at the portable terminal that can not receive self carries out correct demodulation coding, can be more purposive to cooperative base station request demodulation coding result, thereby saved port load pressure between serving BS and cooperative base station.

When the upstream data that serving BS is sent at the portable terminal that can not receive self carries out correct demodulation coding, the mode that in embodiment one and embodiment two, provides, can also adopt other modes to obtain the relevant information of upstream data from cooperative base station.

Correspondingly, the embodiment of the invention also provides a kind of base station that is used for cooperative multipoint transmission, and as shown in Figure 6, this base station comprises first receiving element 601, first feedback unit 602, notification unit 603, second receiving element 604, second feedback unit 605 and transmitting element 606, wherein

First receiving element 601 is used for the upstream data that mobile terminal receive is sent;

First feedback unit 602 is used in the time can carrying out correct demodulation coding to the upstream data that receiving element 601 receives, and is used to the feedback message of confirming that upstream data has correctly been received to described portable terminal transmission;

Notification unit 603 is used in the time can not carrying out correct demodulation coding to the upstream data that first receiving element 601 receives, and sends to cooperative base station to be used for the notification message that the notification service base station can not be carried out correct demodulation coding to upstream data;

Second receiving element 604 is used to receive the demodulation coding result of the described upstream data correspondence that cooperative base station sends according to described notification message;

Second feedback unit 605 is used for receiving after cooperative base station sends the demodulation coding result of upstream data correspondence at second receiving element, sends to described portable terminal to be used to the feedback message of confirming that upstream data has correctly been received;

Transmitting element 606, when being used for described base station as cooperative base station, before being used for of receiving that serving BS sends, the notification service base station can not carry out the notification message of correct demodulation coding to upstream data, forbid sending the demodulation coding result of upstream data or upstream data correspondence to other base stations; After receiving the notification message that serving BS sends, send the demodulation coding result of upstream data correspondence to serving BS.

Wherein, above-mentioned base station should possess the function of first receiving element 601, first feedback unit 602, notification unit 603, second receiving element 604, second feedback unit, 605 correspondences during as serving BS; During as cooperative base station, should possess the function of transmitting element 606.

Please refer to accompanying drawing 7, the second kind of structural representation that is used for the base station of cooperative multipoint transmission that provides for the embodiment of the invention, this base station comprises first receiving element 701, first feedback unit 702, notification unit 703, second receiving element 704, merges processing unit 705, second feedback unit 706, the 3rd feedback unit 707 and transmitting element 708, wherein

First receiving element 701 is used for the upstream data that mobile terminal receive is sent;

First feedback unit 702 is used in the time can carrying out correct demodulation coding to the upstream data that first receiving element 701 receives, and is used to the feedback message of confirming that upstream data is correctly received to described portable terminal transmission;

Notification unit 703 is used in the time can not carrying out correct demodulation coding to the upstream data that first receiving element 701 receives, and sends to cooperative base station to be used for the notification message that the notification service base station can not be carried out correct demodulation coding to upstream data;

Second receiving element 704 is used to receive the upstream data that described cooperative base station that cooperative base station sends according to described notification message receives;

Merge processing unit 705, be used for the upstream data that the upstream data that second receiving element 704 is received and first receiving element 701 receive and merge processing;

Second feedback unit 706 is used for can being combined processing unit 705 when merging upstream data after handling and carrying out correct demodulation coding, sends to described portable terminal to be used to the feedback message of confirming that upstream data is correctly received;

The 3rd feedback unit 707 is used for can not being combined processing unit 705 when merging upstream data after handling and carrying out correct demodulation coding, sends to described portable terminal to be used to the feedback message of confirming that upstream data is not correctly received;

Transmitting element 708 is used for forbidding sending to other base stations the demodulation coding result of upstream data or upstream data correspondence before being used for of receiving that serving BS sends, the notification service base station can not carry out the notification message of correct demodulation coding to upstream data; Receiving after serving BS sends described notification message, send upstream data to serving BS.

Above-mentioned base station is during as serving BS, should possess first receiving element 701, first feedback unit 702, notification unit 703, second receiving element 704, merge the function of processing unit 705, second feedback unit 706, the 3rd feedback unit 707; During as cooperative base station, should possess the function of transmitting element 708.

Please refer to accompanying drawing 8, the third that provides for the embodiment of the invention is used for the structural representation of the base station of cooperative multipoint transmission, this base station comprises first receiving element 801, first feedback unit 802, second receiving element 803, request unit 804, the 3rd receiving element 805, second feedback unit 806, first transmitting element 807 and second transmitting element 808, wherein

First receiving element 801 is used for the upstream data that mobile terminal receive is sent;

First feedback unit 802 is used in the time can carrying out correct demodulation coding to the upstream data that first receiving element 801 receives, and is used to the feedback message of confirming that upstream data has correctly been received to described portable terminal transmission;

Second receiving element 803 is used to receive can the described cooperative base station in notification service base station carry out correct demodulation coding to the upstream data that described portable terminal sends the message that is used for that other base stations send;

Request unit 804, be used in the time can not carrying out correct demodulation coding the upstream data that first receiving element 801 receives, according to the message that second receiving element 803 receives, can carry out other base station requests demodulation codings result of correct demodulation coding to the upstream data that described portable terminal sends at least one;

The 3rd receiving element 805 is used to receive the demodulation coding result that send according to the request of request unit other base stations;

Second feedback unit 806 is used for after the 3rd receiving element 805 receives the demodulation coding result, is used to the feedback message of confirming that upstream data has correctly been received to described portable terminal transmission;

First transmitting element 807 is used for being used for correct demodulation coding be carried out in notification service base station self can to the upstream data that portable terminal sends message to the serving BS transmission;

Second transmitting element 808 was used for before the request that receives serving BS, forbade sending to serving BS the demodulation coding result of upstream data or upstream data correspondence; After the request that receives serving BS, send the demodulation coding result of upstream data correspondence to serving BS.

Above-mentioned base station should possess the function of first receiving element 801, first feedback unit 802, second receiving element 803, request unit 804, the 3rd receiving element 805, second feedback unit 806 during as serving BS; During as cooperative base station, should possess the function of first transmitting element 807 and second transmitting element 808.

Please refer to accompanying drawing 9, the 4th kind of structural representation that is used for the base station of cooperative multipoint transmission that provides for the embodiment of the invention, this base station comprises first receiving element 901, first feedback unit 902, second receiving element 903, request unit 904, the 3rd receiving element 905, merges processing unit 906, second feedback unit 907, the 3rd feedback unit 908, first transmitting element 909 and second transmitting element 910, wherein

First receiving element 901 is used for the upstream data that mobile terminal receive is sent;

First feedback unit 902 is used in the time can carrying out correct demodulation coding to the upstream data that first receiving element receives, and is used to the feedback message of confirming that upstream data has correctly been received to described portable terminal transmission;

Second receiving element 903 is used to receive can the described cooperative base station in notification service base station carry out correct demodulation coding to the upstream data that described portable terminal sends the message that is used for that cooperative base station sends;

Request unit 904, be used in the time can not carrying out correct demodulation coding the upstream data that first receiving element 901 receives, the message that receives according to second receiving element 903, when definite all cooperative base station all can not be carried out correct demodulation coding to the upstream data that receives, the upstream data that receives to the described cooperative base station of cooperative base station request;

The 3rd receiving element 905 is used to receive the upstream data that cooperative base station is sent according to the request of request unit;

Merge processing unit 906, be used for the upstream data that the upstream data that the 3rd receiving element 905 is received and first receiving element 901 receive and merge processing;

Second feedback unit 907 is used for can being combined processing unit 906 when merging upstream data after handling and carrying out correct demodulation coding, sends to described portable terminal to be used to the feedback message of confirming that upstream data has correctly been received;

The 3rd feedback unit 908 is used for can not being combined processing unit 906 when merging upstream data after handling and carrying out correct demodulation coding, sends to described portable terminal to be used to the feedback message of confirming that upstream data is not correctly received;

First transmitting element 909 is used for being used for correct demodulation coding be carried out in notification service base station self can to the upstream data that portable terminal sends message to the serving BS transmission;

Second transmitting element 910 was used for before the request that receives serving BS, forbade sending to serving BS the demodulation coding result of upstream data or upstream data correspondence; After the request that receives serving BS, send upstream data to serving BS.

Above-mentioned base station is during as serving BS, should possess first receiving element 901, first feedback unit 902, second receiving element 903, request unit 904, the 3rd receiving element 905, merge the function of processing unit 906, second feedback unit 907, the 3rd feedback unit 908; During as cooperative base station, should possess the function of first transmitting element 909 and second transmitting element 910.

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, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.

Claims

1. the processing method of upstream data in the cooperative multipoint transmission is characterized in that, comprising:

The upstream data that the serving BS mobile terminal receive is sent; And

In the time can carrying out correct demodulation coding, send to described portable terminal and to be used to the feedback message of confirming that upstream data has correctly been received the upstream data that receives; And

In the time can not carrying out correct demodulation coding, be used for the notification message that the notification service base station can not be carried out correct demodulation coding to upstream data to the cooperative base station transmission to the upstream data that receives;

The demodulation coding result of the described upstream data correspondence that the cooperative base station that serving BS reception cooperative base station is sent according to described notification message receives;

Serving BS is receiving after cooperative base station sends the demodulation coding result of upstream data correspondence, sends to described portable terminal to be used to the feedback message of confirming that upstream data has correctly been received.

2. the method for claim 1 is characterized in that, serving BS sends described notification message by X2 interface to cooperative base station, and

Receive the demodulation coding result of the upstream data correspondence that cooperative base station sends by X2 interface.

3. a cooperative multicast system is characterized in that, comprise the serving BS of portable terminal and participate in the collaborative cooperative base station of transmitting, wherein:

Serving BS is used for the upstream data that mobile terminal receive is sent; In the time can carrying out correct demodulation coding to the upstream data that receives, send to described portable terminal and to be used to the feedback message of confirming that upstream data has correctly been received, in the time can not carrying out correct demodulation coding, be used for the notification message that the notification service base station can not be carried out correct demodulation coding to upstream data to the cooperative base station transmission to the upstream data that receives; And the demodulation coding result who receives the described upstream data correspondence that cooperative base station sends according to described notification message; Receiving after cooperative base station sends the demodulation coding result of upstream data correspondence, sending to described portable terminal and be used to the feedback message of confirming that upstream data has correctly been received;

Cooperative base station is used for the upstream data that mobile terminal receive is sent, and before receiving the notification message that serving BS sends, forbids sending to serving BS the demodulation coding result of described upstream data or upstream data correspondence.

4. a base station that is used for cooperative multipoint transmission is characterized in that, comprising:

First receiving element is used for the upstream data that mobile terminal receive is sent;

First feedback unit is used in the time can carrying out correct demodulation coding to the upstream data that first receiving element receives, and is used to the feedback message of confirming that upstream data has correctly been received to described portable terminal transmission;

Notification unit is used in the time can not carrying out correct demodulation coding to the upstream data that first receiving element receives, and sends to cooperative base station to be used for the notification message that the notification service base station can not be carried out correct demodulation coding to upstream data;

Second receiving element is used to receive the demodulation coding result of the described upstream data correspondence that cooperative base station sends according to described notification message;

Second feedback unit is used for receiving after cooperative base station sends the demodulation coding result of upstream data correspondence at second receiving element, sends to described portable terminal to be used to the feedback message of confirming that upstream data has correctly been received;

Transmitting element is used for forbidding sending to other base stations the demodulation coding result of upstream data or upstream data correspondence before being used for of receiving that serving BS sends, the notification service base station can not carry out the notification message of correct demodulation coding to upstream data; After receiving the notification message that serving BS sends, send the demodulation coding result of upstream data correspondence to serving BS.

5. the processing method of upstream data in the cooperative multipoint transmission is characterized in that, comprising:

The upstream data that the serving BS mobile terminal receive is sent; And

The described upstream data that the described cooperative base station that serving BS reception cooperative base station is sent according to described notification message receives; And

Cooperative base station upstream data of sending and the upstream data that self receives are merged processing, and

When the upstream data after can being combined processing carries out correct demodulation coding, send to described portable terminal and to be used to the feedback message of confirming that upstream data has correctly been received; And

When the upstream data after can not being combined processing carries out correct demodulation coding, send to described portable terminal and to be used to the feedback message of confirming that upstream data is not correctly received.

6. method as claimed in claim 5 is characterized in that serving BS sends described notification message by X2 interface to cooperative base station, and

Receive the upstream data that cooperative base station is sent by X2 interface.

7. a cooperative multicast system is characterized in that, comprise the serving BS of portable terminal and participate in the collaborative cooperative base station of transmitting, wherein:

Serving BS is used for the upstream data that mobile terminal receive is sent; In the time can carrying out correct demodulation coding, send to described portable terminal and to be used to the feedback message of confirming that upstream data has correctly been received the upstream data that receives; In the time can not carrying out correct demodulation coding, be used for the notification message that the notification service base station can not be carried out correct demodulation coding to upstream data to the cooperative base station transmission to the upstream data that receives; And receive the described upstream data that cooperative base station is sent according to described notification message; And the upstream data that cooperative base station is sent and the upstream data that self receives merge processing, and the upstream data after can being combined processing is when carrying out correct demodulation coding, sends to described portable terminal to be used to the feedback message of confirming that upstream data has correctly been received; And the upstream data after can not being combined processing is when carrying out correct demodulation coding, sends to described portable terminal to be used to the feedback message of confirming that upstream data is not correctly received;

8. a base station that is used for cooperative multipoint transmission is characterized in that, comprising:

Second receiving element is used to receive the described upstream data that cooperative base station is sent according to described notification message;

Merge processing unit, be used for the upstream data that the upstream data that second receiving element is received and first receiving element receive and merge processing;

Second feedback unit is used for can being combined upstream data after processing unit merge to be handled when carrying out correct demodulation coding, sends to described portable terminal to be used to the feedback message of confirming that upstream data has correctly been received;

The 3rd feedback unit is used for can not being combined upstream data after processing unit merge to be handled when carrying out correct demodulation coding, sends to described portable terminal to be used to the feedback message of confirming that upstream data is not correctly received;

Transmitting element is used for forbidding sending to other base stations the demodulation coding result of upstream data or upstream data correspondence before being used for of receiving that serving BS sends, the notification service base station can not carry out the notification message of correct demodulation coding to upstream data; Receiving after serving BS sends described notification message, send upstream data to serving BS.

9. the processing method of upstream data in the cooperative multipoint transmission is characterized in that, comprising:

The upstream data that the serving BS mobile terminal receive is sent, and

In the time can not carrying out correct demodulation coding to the upstream data that receives, be used for can the described cooperative base station in notification service base station carry out correct demodulation coding to the upstream data that described portable terminal sends message according to what cooperative base station was sent, can carry out the cooperative base station request demodulation coding result of correct demodulation coding to described upstream data at least one;

Serving BS receives the demodulation coding result that cooperative base station is sent according to described request; And

Receiving after cooperative base station sends the demodulation coding result, sending to described portable terminal and be used to the feedback message of confirming that upstream data has correctly been received.

10. method as claimed in claim 9 is characterized in that, cooperative base station sends to serving BS by X2 interface and is used for can the described cooperative base station in notification service base station carry out correct demodulation coding to the upstream data that described portable terminal sends message, and

Serving BS can carry out the cooperative base station request demodulation coding result of correct demodulation coding by X2 interface to the upstream data that described portable terminal sends at least one.

11. a cooperative multicast system is characterized in that, comprises the serving BS of portable terminal and participates in the collaborative cooperative base station of transmitting, wherein:

Serving BS is used for the upstream data that mobile terminal receive is sent, and in the time can carrying out correct demodulation coding to the upstream data that receives, sends to described portable terminal and to be used to the feedback message of confirming that upstream data has correctly been received; In the time can not carrying out correct demodulation coding to the upstream data that receives, be used for can the described cooperative base station in notification service base station carry out correct demodulation coding to described upstream data message according to what cooperative base station was sent, can carry out the cooperative base station request demodulation coding result of correct demodulation coding to described upstream data at least one; Receive the demodulation coding result that cooperative base station is sent according to described request; Receiving after cooperative base station sends the demodulation coding result, sending to described portable terminal and be used to the feedback message of confirming that upstream data has correctly been received;

Cooperative base station, be used for the upstream data that mobile terminal receive is sent, and after to the upstream data demodulation coding that receives, send to serving BS and to be used for correct demodulation coding be carried out in notification service base station self can to the upstream data that described portable terminal sends message; Before the request that receives serving BS, forbid sending the demodulation coding result of described upstream data or upstream data correspondence to serving BS.

12. a base station that is used for cooperative multipoint transmission is characterized in that, comprising:

Second receiving element is used to receive can the described cooperative base station in notification service base station carry out correct demodulation coding to the upstream data that described portable terminal sends the message that is used for that other base stations send;

Request unit, be used in the time can not carrying out correct demodulation coding the upstream data that first receiving element receives, according to the message that second receiving element receives, can carry out other base station requests demodulation codings result of correct demodulation coding to the upstream data that described portable terminal sends at least one;

The 3rd receiving element is used to receive the demodulation coding result that send according to the request of request unit other base stations;

Second feedback unit is used for after the 3rd receiving element receives the demodulation coding result, is used to the feedback message of confirming that upstream data has correctly been received to described portable terminal transmission;

First transmitting element is used for being used for correct demodulation coding be carried out in notification service base station self can to the upstream data that portable terminal sends message to the serving BS transmission;

Second transmitting element was used for before the request that receives serving BS, forbade sending to serving BS the demodulation coding result of upstream data or upstream data correspondence; After the request that receives serving BS, send the demodulation coding result of upstream data correspondence to serving BS.

13. the processing method of upstream data is characterized in that in the cooperative multipoint transmission, comprising:

The upstream data that the serving BS mobile terminal receive is sent, and

In the time can not carrying out correct demodulation coding to the upstream data that receives, be used for can the described cooperative base station in notification service base station carry out correct demodulation coding to described upstream data message according to what cooperative base station was sent, when definite all cooperative base station all can not be carried out correct demodulation coding to the upstream data that receives, the upstream data that receives to the described cooperative base station of cooperative base station request;

Serving BS merges processing to cooperative base station according to described request upstream data of sending and the upstream data that self receives; And

14. method as claimed in claim 13 is characterized in that, cooperative base station sends to serving BS by X2 interface and is used for can the described cooperative base station in notification service base station carry out correct demodulation coding to the upstream data that described portable terminal sends message, and

The upstream data that serving BS receives to the described cooperative base station of cooperative base station request by X2 interface.

15. a cooperative multicast system is characterized in that, comprises the serving BS of portable terminal and participates in the collaborative cooperative base station of transmitting, wherein:

Serving BS is used for the upstream data that mobile terminal receive is sent, and in the time can carrying out correct demodulation coding to the upstream data that receives, sends to described portable terminal and to be used to the feedback message of confirming that upstream data has correctly been received; In the time can not carrying out correct demodulation coding to the upstream data that receives, be used for can the described cooperative base station in notification service base station carry out correct demodulation coding to described upstream data message according to what cooperative base station was sent, when definite all cooperative base station all can not be carried out correct demodulation coding to the upstream data that receives, the upstream data that receives to the described cooperative base station of cooperative base station request; Cooperative base station is merged processing according to described request upstream data of sending and the upstream data that self receives, and the upstream data after can being combined processing is when carrying out correct demodulation coding, sends to described portable terminal to be used to the feedback message of confirming that upstream data has correctly been received; And the upstream data after can not being combined processing is when carrying out correct demodulation coding, sends to described portable terminal to be used to the feedback message of confirming that upstream data is not correctly received;

16. a base station that is used for cooperative multipoint transmission is characterized in that, comprising:

Second receiving element is used to receive can the described cooperative base station in notification service base station carry out correct demodulation coding to the upstream data that described portable terminal sends the message that is used for that cooperative base station sends;

Request unit, be used in the time can not carrying out correct demodulation coding the upstream data that first receiving element receives, the message that receives according to second receiving element, when definite all cooperative base station all can not be carried out correct demodulation coding to the upstream data that receives, the upstream data that receives to the described cooperative base station of cooperative base station request;

The 3rd receiving element is used to receive the upstream data that cooperative base station is sent according to the request of request unit;

Merge processing unit, be used for the upstream data that the upstream data that the 3rd receiving element is received and first receiving element receive and merge processing;

Second transmitting element was used for before the request that receives serving BS, forbade sending to serving BS the demodulation coding result of upstream data or upstream data correspondence; After the request that receives serving BS, send upstream data to serving BS.