CN102301631A - Method And System For Controlling The Data Repeat - Google Patents
Method And System For Controlling The Data Repeat Download PDFInfo
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- CN102301631A CN102301631A CN2009801556568A CN200980155656A CN102301631A CN 102301631 A CN102301631 A CN 102301631A CN 2009801556568 A CN2009801556568 A CN 2009801556568A CN 200980155656 A CN200980155656 A CN 200980155656A CN 102301631 A CN102301631 A CN 102301631A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0025—Transmission of mode-switching indication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
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Abstract
A scheme for controlling the data repeat is provided. In the case of HARQ-ACK spatial bundling, for a plurality of data units transmitted by a mobile terminal using the spatial multiplexing mode, the bit number indicated by the repeat feedback is not changed. By sending a repeat feedback indicator, a precoding matrix indicator and a rank indicator using the network equipment, the mobile terminal only repeats the data unit which is not decoded correctly by the network equipment according to the information included in said three indicators. By using the scheme, the success ratio of the data unit repeating is increased and the use efficiency of system resource is improved effectively, thereby, the system performance could be improved.
Description
A kind of method and apparatus retransmitted for control data
Technical field
The present invention relates to Retransmission control, more particularly to for Retransmission control of the mobile terminal using multiple data of spatial multiplexing mode transmission.Background technology
In the further evolution version LTE-advanced systems of 3GPP Long Term Evolution, a user can at most use two transmission blocks in a subframe of each up composition carrier frequency (component carrier)（Transport block) or code word（codeword ) .Each transmission block can obtain a layer interference cancellation gain by using independent modulation system and encryption algorithm.
In the meeting of the working group of 3GPP the Technology of Wireless Access Networks first, determine that time domain layer can be used to shift (layer shifting) or shift without using time domain layer.If shifted using time domain layer, then it is directed to all data blocks of the user in a subframe, in order to reduce physical hybrid automatic repeat request indicator channel (PHICH) resource shared by each user, power system capacity is not reduced, base station only sends a hybrid automatic repeat-request（HARQ) feed back.If user all data blocks transmitted in a subframe are all correctly decoded by base station, base station sends the confirmation response of 1 bit（), ACK mobile terminal does not need re-transmitting data block.Otherwise, if there is any one not to be correctly decoded by base station in all data blocks, base station sends the negative response of 1 bit（), NACK mobile terminal needs to retransmit all data blocks.This retransmission feedback using 1 bit is bound to indicate that the mode of the receptivity of the multiple data blocks of spatial reuse is also referred to as HARQ-ACK spaces（ spatial bundling ) .
If two data blocks that mobile terminal is sent can be correctly decoded by base station, the throughput of system can be improved using the binding of HARQ-ACK spaces.But if only one of which can not be correctly decoded by base station in two data blocks, because the binding of HARQ-ACK spaces not can indicate which data block is not correctly decoded, then the data block that another data block being correctly decoded is also required to and is not correctly decoded is retransmitted together.System resource can be wasted by then retransmitting the data block being correctly received, so as to reduce the performance of system, such as throughput.
Disturbed in addition, retransmitting the data block being received correctly by the base station and also another real data block for needing to retransmit can be produced, reduce probability of successful retransmission, systematic function is adversely affected.The content of the invention
In the case of being bound in HARQ-ACK spaces, when mobile terminal using spatial multiplexing mode send two data blocks in there is one to be correctly decoded by base station, there is one when not being correctly decoded by base station, if mobile terminal can be allowed to distinguish the data block for being correctly decoded and not being correctly decoded, mobile terminal just can only retransmit the data block not being correctly decoded, so as to improve systematic function.
In order to preferably solve above-mentioned consider, the invention provides a kind of technical scheme retransmitted for control data, in the case of being bound in HARQ-ACK spaces, for a mobile terminal using multiple data cells transmitted by spatial multiplexing mode, the bit number of retransmission feedback instruction is not changed, one retransmission feedback instruction, a pre-coding matrix instruction and an order instruction are sent by the network equipment, allow mobile terminal according to above three indicate included in information, only retransmit the data cell not being correctly decoded by the network equipment.
According to the first aspect of the invention there is provided a kind of method for being used to send retransmission instructions in a network equipment of GSM, this method comprises the following steps：Receive the multiple data cells for using spatial multiplexing mode to send by a mobile terminal；The blunt receptivity index according to each data cell in the multiple data cell, it is determined that needing the data cell retransmitted, the data cell that the needs are retransmitted is some or all of for the multiple data cell；And a retransmission feedback instruction, a pre-coding matrix instruction and an order instruction are sent to the mobile terminal, inform that the mobile terminal only retransmits the data cell for needing to retransmit by the information included in described three instructions.
According to the second aspect of the invention there is provided a kind of method for being used to retransmit data in a mobile terminal of GSM, this method comprises the following steps：The instruction of a retransmission feedback, a pre-coding matrix instruction and the order instruction sent by a network equipment is received, described three indicate to be set using multiple data cells that spatial multiplexing mode is sent according to the mobile terminal received by the network equipment；And included information is indicated according to described three, it is determined that needing the data cell retransmitted, the data cell that the needs are retransmitted is the multiple data sheet
First is some or all of.
By technical scheme, the problem of effectively can not realizing re-transmission in the case of being bound in HARQ-ACK spaces is solved.The total data unit for needing the data cell retransmitted no longer simply to send, the data cell being received correctly by the base station need not be retransmitted, so as to reduce the interference suffered by the data cell for needing to retransmit, improve the success rate of re-transmission.Further, since some data cell need not retransmit, then corresponding transmission power is saved, so as to improve the capacity of system.
According to the third aspect of the present invention there is provided a kind of retransmission instructions dispensing device for being used to send retransmission instructions in a network equipment of GSM, the device includes：One first receiving device, it is used to receive the multiple data cells for using spatial multiplexing mode to send by a mobile terminal；One first re-transmission determining device, it is used for the just blunt receptivity index according to each data cell in the multiple data cell, it is determined that needing the data cell retransmitted, the data cell that the needs are retransmitted is some or all of for the multiple data cell；And first dispensing device, it is used to send a retransmission feedback instruction, a pre-coding matrix instruction and an order instruction to the mobile terminal, indicates that included information inform that the mobile terminal only retransmits the data cell for needing to retransmit by described three.
According to the fourth aspect of the present invention there is provided a kind of data retransmission device for being used to retransmit data in a mobile terminal of GSM, the device includes：One the second reception device, it is used to receive the instruction of a retransmission feedback, a pre-coding matrix instruction and the order instruction sent by a network equipment, and described three indicate to be set using multiple data cells that spatial multiplexing mode is sent according to the mobile terminal received by the network equipment；And one second re-transmission determining device, it is used to indicate included information according to described three, it is determined that needing the data cell retransmitted, the data cell that the needs are retransmitted is some or all of for the multiple data cell.
Brief description of the drawings
By reading the detailed description made with reference to the property embodiment processed blunt to non-P that the following drawings is made,
The above-mentioned and other feature of the present invention will become more apparent：
Fig. 1 is a kind of schematic flow sheet for being used to send the method for retransmission instructions in a network equipment of GSM according to the present invention；
Fig. 2 is a kind of blunt schematic flow sheets for being used to retransmit the method for data in a mobile terminal of GSM according to the present invention of ^ f；
Fig. 3 is a kind of schematic diagram for being used to send the retransmission instructions dispensing device of retransmission instructions in a network equipment of GSM according to the present invention；
Fig. 4 is a kind of blunt schematic diagrames for being used to retransmit the data retransmission device of data in a mobile terminal of GSM according to the present invention of ^ f.Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Present invention firstly provides a kind of method for being used to send retransmission instructions in a network equipment of GSM.The network equipment can be base station, radio network controller（RNC) etc., you can the equipment to provide control function.
Fig. 1 is a kind of schematic flow sheet for being used to send the method for retransmission instructions in a network equipment of GSM according to the present invention.
As shown in figure 1, the method comprising the steps of S101, receives the multiple data cells for using spatial multiplexing mode to send by a mobile terminal.
Each data cell in the plurality of data cell can use multiple independent coded systems or modulation system.The plurality of data cell can be multiple data blocks or multiple code words.The plurality of data cell can be sent by multiple antennas of mobile terminal respectively, and each data cell can also split into some, be sent respectively by multiple antennas of mobile terminal.
This method also includes step S102, according to the receptivity index of each data cell in the multiple data cell, it is determined that needing the data cell retransmitted, the data cell that the needs are retransmitted is some or all of for the multiple data cell.
Modulation and coded system due to each data cell may be different, and the characteristic of channel undergone is also different, so the receptivity of each data cell may also be different.The network equipment can determine whether some data cell needs re-transmission according to the check code of data cell is received.When what is received
When the performance indications of data cell are better than a predetermined performance indications thresholding, it is believed that base station has had correctly received the data cell；When the performance indications of the data cell received are worse than a predetermined performance indications thresholding, it is believed that base station is not properly received the data cell.The data cell not being received correctly by the base station is accomplished by mobile terminal and resend.In some cases, all data cells are required for retransmitting, in some cases, and only partial data unit needs to retransmit, in some cases, it is not necessary to retransmit any data cell.
This method also includes step S103, a retransmission feedback instruction, a pre-coding matrix instruction and an order instruction are sent to the mobile terminal, informs that the mobile terminal only retransmits the data cell for needing to retransmit by the information included in described three instructions.
For multiple data cells transmitted by mobile terminal, for each instruction of above-mentioned three kinds instructions, base station only sends a configured information for allowing the plurality of data cell to share, i.e., start introduced HARQ-ACK spaces binding herein.Retransmission feedback indicates that the ACK/NACK of 1 bit can be used to indicate whether received data cell is all received correctly by the base station or has any data cell not to be received correctly by the base station.Based on a base station and mobile terminal approve by the predefined code book of system, the information that pre-coding matrix instruction and order instruction are included is used to refer to the pre-coding matrix that the data cell transmitted by mobile terminal should be used.By the way that above three is indicated included information consolidation together, rather than only using a retransmission feedback instruction, it is possible in the case of being bound in HARQ-ACK spaces, indicate that mobile terminal only retransmits the data cell not being received correctly by the base station.
When the data cell for needing to retransmit is all the multiple data cells, step is also included before step S103：The retransmission feedback is indicated to be set as retransmitting, the pre-coding matrix that the pre-coding matrix of the pre-coding matrix instruction is set as being used according to needed for system performance requirements, and the order instruction is set as to the number of the data flow of the multiple data cell.
Retransmission feedback is indicated to indicate to need to retransmit by sending NACK instructions, i.e., multiple data cells transmitted by mobile terminal are not properly received all by base station.According to system performance requirements, the carrier/interface ratio of signal, existing system throughput situation etc. are such as received, the network equipment is that mobile terminal selects all to send the precoding that the plurality of data cell should be used.The network equipment is that the precoding that the precoding that mobile terminal is selected can be used with mobile terminal last time transmission data is identical or different.Data flow can be defined in several ways, such as in LTE-advanced systems, number
It is layer according to stream.The number of the data flow of multiple data cells refers to the number for all data flows that multiple data cells are included, rather than only refers to a data cell.The number of the data flow of data cell can be determined by mobile terminal or the network equipment according to predefined criterion.Because total data unit is required for retransmitting, so being now, for specific which or which data cell, but multiple data cells to be configured as an entirety according to the performance of system requirements without distinguishing to the configurations of described three instructions.
When the data cell for needing to retransmit is a part for the multiple data cell, step
Also include step before S103：The retransmission feedback is designated as to retransmit, the pre-coding matrix of the pre-coding matrix instruction is set as the pre-coding matrix with selection characteristic, the matrix column number be the needs retransmit data cell data flow number, and by the order instruction be set as the needs retransmit data cell data flow number.
Retransmission feedback is indicated to indicate to need to retransmit by sending NACK instructions, i.e., multiple data cells transmitted by mobile terminal are not properly received all by base station.Pre-coding matrix with selection characteristic refers to that the numerical value in the pre-coding matrix is 0 or 1.Because the numerical value in pre-coding matrix is 0 or 1, so the pre-coding matrix is in addition to it can be used for informing the pre-coding matrix that mobile terminal should be used, it can also represent that mobile terminal should retransmit which or which data cell with 0 and 1.Such as, 1 represent to need to retransmit, 0 represents to retransmit.Mobile communication network device can be pre-defined or dynamic sets transmitting antenna and the layer shift mode of multiple data cells used in multiple data cells（layer shifting pattern ) .Transmitting antenna or the layer shift mode of multiple data cells according to used in multiple data cells, base station selected one has the pre-coding matrix for selecting characteristic, is which of multiple data cells or which data cell with inform mobile terminal needs re-transmission.Need the data flow of the data cell retransmitted number refer to re-transmission in need the number of all data flows that is included of data cell, rather than only refer to a data cell.The number of the data flow of data cell can be determined by mobile terminal or the network equipment according to predefined criterion.It is received correctly by the base station when there is partial data unit, when thering is the partial data unit not to be received correctly by the base station, if the retransmission feedback transmitted by base station is re-transmission, and the order indicated by order instruction be less than multiple data cells transmitted by mobile terminal used in order, then can inform that data cell of the mobile terminal transmitted by it is not received correctly by the base station.Base station further can inform mobile terminal by only having the pre-coding matrix of 0 and 1 two kind of numerical value
Specifically which or which data cell needs to retransmit.
Corresponding to the above-mentioned method for being used to send retransmission instructions in a network equipment of GSM, present invention also offers a kind of method for being used to retransmit data in a mobile terminal of GSM.
Fig. 2 is a kind of blunt schematic flow sheets for being used to retransmit the method for data in a mobile terminal of GSM according to the present invention of ^ f.
As shown in Figure 2, the method comprising the steps of S201, the instruction of a retransmission feedback, a pre-coding matrix instruction and the order instruction sent by a network equipment is received, described three indicate to be set using multiple data cells that spatial multiplexing mode is sent according to the mobile terminal received by the network equipment.
Mobile terminal, it is necessary to determine the operation of next step according to the feedback of base station, that is, retransmits or sent new data after the multiple data cells sent using spatial multiplexing mode.
This method also includes step S202, and included information is indicated according to described three, it is determined that needing the data cell retransmitted, the data cell that the needs are retransmitted is some or all of for the multiple data cell.
In existing technical scheme, mobile terminal only needs to be indicated according to a retransmission feedback to judge whether to need to retransmit data.According to scheme provided by the present invention, mobile terminal needs to indicate included information according to described three, determine retransmission scheme, only retransmit the data cell not being received correctly by the base station, as long as rather than simply there is data cell not to be received correctly by the base station, just retransmit all data cells.
When the number for the data flow that the retransmission feedback is designated as retransmitting and the order instruction is the multiple data cell, step is also included after step S202：Send all the multiple data cells.
Because mobile terminal have received retransmit, and the content of order instruction is identical with the content of the order instruction corresponding to the data that mobile terminal last time sends, then mobile terminal can determine that multiple data cells of last time transmission are not received correctly by the base station all, it is necessary to all resend.
When the retransmission feedback is designated as retransmitting, the pre-coding matrix of the pre-coding matrix instruction is the matrix with selection characteristic, and the order instruction the number data flow that is less than the multiple data cell number when：Step S202 also includes sub-step, according to the pre-coding matrix instruction
Pre-coding matrix determine it is described need retransmit data cell；Also include step after step S202, send the data cell for needing to retransmit.
Because mobile terminal have received retransmit, and the content of order instruction is less than the content of the order instruction corresponding to the data sent mobile terminal last time, then mobile terminal can determine that multiple data cells of last time transmission have part to be received correctly by the base station, there is part not retransmitted by base station, it is necessary to retransmit partial data unit.On transmitting antenna used in multiple data cells or the layer shift mode of multiple data cells basis, mobile terminal determines specifically to need re-transmission which or which data cell according to the pre-coding matrix with selection characteristic, such as, 1 corresponding to re-transmission is needed in matrix, and 0 corresponds to and need not retransmit.
When the retransmission feedback is designated as retransmitting, the pre-coding matrix of the pre-coding matrix instruction is the matrix without selection characteristic, and the number of the order instruction, when being less than the number of the data flow of the multiple data cell, the number for the data cell that the needs are retransmitted is zero.
Because mobile terminal have received retransmit, and the content of order instruction is less than the content of the order instruction corresponding to the data sent mobile terminal last time, mobile terminal should can also read an instruction with selection characteristic pre-coding matrix according to pre-coding matrix instruction and order instruction, but mobile terminal has read a pre-coding matrix without selection characteristic but according to instruction from code book.In this case, it is that the transmission that retransmission feedback is indicated there occurs mistake that mobile terminal, which can determine, it be to retransmit that correct retransmission feedback, which is indicated, so mobile terminal does not retransmit the data sent, and be to wait for new instruction to carry out next step other operations.
When only one of which data cell needs to retransmit, and the data cell is after re-transmission, when still needing to retransmit, the problem of due to now being bound in the absence of HARQ-ACK spaces, Retransmission control mode just uses existing Retransmission control mode, i.e., the selection of pre-coding matrix is carried out according to performance requirements.
Below more specific description is done by taking a mobile terminal in LTE-Adavanced systems as an example.
In LTE-Adavanced systems, a mobile terminal can use two emitting antennas to send data, and each mobile terminal can at most use two data cells, such as data block in a subframe of each up composition carrier frequency.Base station is instructed by the ACK/NACK of 1 bit and sends retransmission feedback to mobile terminal, passes through pre-coding matrix instruction（) and order instruction PMI
(RI) pre-coding matrix used needed for mobile terminal is informed.Technique according to the invention scheme, base station indicates that included combined information informs that mobile terminal needs which data cell specifically retransmitted for tri- by ACK/NACK, PMI and RI.
Table 1 is the code book table of two emitting antennas in LTE-Adavanced systems.The number of plies is the number for the data flow altogether that two data cells are included.When the number of plies is 1,6 kinds of pre-coding matrixes that can be used are had；When the number of plies is 2, only a kind of pre-coding matrix that can be used.Mobile terminal has the code book table of two emitting antennas in the LTE-Adavanced systems of table 1
One mobile terminal for having two emitting antennas have sent two data blocks by the way of spatial reuse.Base station receives the two data blocks.
When two data blocks are all correctly received by base station, base station just sends the ACK information of 1 bit to mobile terminal.Mobile terminal is received after ACK, determines that 4 bar, two data blocks are all properly received for base station, wait for new instruction.
When two data blocks are not all received correctly by the base station, base station just sends the nack message of 1 bit to mobile terminal, and informs that mobile terminal code book index is 0 with PMI and RI, and the number of plies is 2.Mobile terminal determines that at least one data cell is not received correctly by the base station after NACK is received, and then determines that the number of plies is 2 by RI again, that is, need
The number of the data flow of transmission is identical with the number for the data flow that last time sends.Therefore, mobile terminal, which can determine, is needed all to retransmit two data cells, and two data cells are resend to base station.
It is received correctly by the base station when there is one in two data blocks, there is one when not being received correctly by the base station, base station just sends the nack message of 1 bit to mobile terminal, and according to being specifically which data block needs to retransmit, mobile terminal code book index and the number of plies are informed with PMI and RI.Transmitting antenna and the layer shift mode of two data blocks according to used in two data blocks, base station selected one there is selection characteristic pre-coding matrix, to inform what mobile terminal needed to retransmit is which data block in two data blocks.The pre-coding matrix in table 1 with selection characteristic is that code book index is 4 and 5, and the number of plies is 1 pre-coding matrix.When two data cells are launched by antenna 1 and antenna 2 respectively, the data block if necessary to retransmit is by antenna
1 transmitting, base station just selects the pre-coding matrix that code book index is 4 and the number of plies is 1
1 represents to need to retransmit, and 0 represents to retransmit；Data block if necessary to retransmit is launched by antenna 2, and base station just selects the pre-coding matrix that code book index is 5 and the number of plies is 1 to be represented to need to retransmit with 1, and 0 represents to retransmit.
Mobile terminal determines that at least one data cell is not received correctly by the base station after NACK is received, and then determines that the number of plies is 1 by RI again, that is, needs the number of data flow of the number less than last time transmission of the data flow sent.Therefore, mobile terminal, which can determine, only needs to retransmit a data cell.The blunt pre-coding matrix read according to PMI and RI in code book of mobile terminal.When two data cells are launched by antenna 1 and antenna 2 respectively, if what mobile terminal read is pre-coding matrix, it becomes possible to it is determined that need to retransmit is last time in antenna
The data cell of 1 transmitting, the data cell launched by antenna 1 is just sent to base station by mobile terminal by antenna 1 again, if what mobile terminal read is pre-coding matrix
What fixed needs were retransmitted is the data cell launched in antenna 2 last time, and the data cell launched by antenna 2 is just sent to base station by mobile terminal by antenna 2 again.
When the data cell resend by an antenna is received correctly by the base station, base station just sends an ACK information to mobile terminal, and mobile terminal is received after ACK information, it is determined that retransmitting
Data cell be received correctly by the base station, wait for new operational order.
When the data cell resend by an antenna is not received correctly by the base station, the control mode that data are retransmitted is identical with situation about being bound without HARQ-ACK spaces.Base station just sends a nack message to mobile terminal, and according to the requirement of systematic function, such as power system capacity, carrier/interface ratio, the number of plies is 1 from table 1, it is that mobile terminal determines corresponding pre-coding matrix in 6 pre-coding matrixes in code index 0 to 5.
When mobile terminal is after two data cells are sent by the way of spatial reuse, the nack message of base station transmission is have received, the number of plies that RI is indicated is 1, but a matrix without selection characteristic has but been read from code book according to PMI and RI, such as.Mobile terminal can determine that ACK/NACK instruction transmission there occurs mistake, and nack message is actually ACK information.Therefore mobile terminal does not do any operation, waits new instruction.
Corresponding to above two method, present invention also offers the device of two kinds of Retransmission controls.Fig. 3 is a kind of schematic diagram for being used to send the retransmission instructions dispensing device 300 of retransmission instructions in a network equipment of GSM according to the present invention.
As shown in figure 3, the retransmission instructions dispensing device 300 includes：One first receiving device 301, it is used to receive the multiple data cells for using spatial multiplexing mode to send by a mobile terminal；One first re-transmission determining device 302, it is used for the receptivity index according to each data cell in the multiple data cell, it is determined that needing the data cell retransmitted, the data cell that the needs are retransmitted is some or all of for the multiple data cell；And first dispensing device 303, it is used to send a retransmission feedback instruction, a pre-coding matrix instruction and an order instruction to the mobile terminal, indicates that included information inform that the mobile terminal only retransmits the data cell for needing to retransmit by described three.For LTE-advanced systems, the number of the multiple data cell is two, and the retransmission feedback indicates that used resource is 1 bit.
When the data cell for needing to retransmit is all the multiple data cells, the retransmission instructions dispensing device 300 also includes：One first instruction setting device, it is used to indicate the retransmission feedback to be set as retransmitting, the pre-coding matrix that the pre-coding matrix of the pre-coding matrix instruction is set as being used according to needed for system performance requirements, and the order instruction is set as to the number of the data flow of the multiple data cell.
When the data cell for needing to retransmit is a part for the multiple data cell, the retransmission instructions dispensing device 300 also includes：One second instruction setting device, it is used to be designated as the retransmission feedback to retransmit, the pre-coding matrix of the pre-coding matrix instruction is set as the matrix with selection characteristic, the matrix column number be the needs retransmit data cell data flow number, and by the order instruction be set as the needs retransmit data cell data flow number.When the transmitting antenna number that the number of the multiple data cell is two and the mobile terminal is two, the pre-coding matrix of the pre-coding matrix instruction is
Fig. 4 is a kind of schematic diagram for being used to retransmit the data retransmission device 400 of data in a mobile terminal of GSM according to the present invention.
As shown in figure 4, the data retransmission device 400 includes：One the second reception device 401, it is used to receive the instruction of a retransmission feedback, a pre-coding matrix instruction and the order instruction sent by a network equipment, and described three indicate to be set using multiple data cells that spatial multiplexing mode is sent according to the mobile terminal received by the network equipment；And one second re-transmission determining device 402, it is used to indicate included information according to described three, it is determined that needing the data cell retransmitted, the data cell that the needs are retransmitted is some or all of for the multiple data cell.For LTE-advanced systems, the number of the multiple data cell is two, and the retransmission feedback indicates that used resource is 1 bit.
When the number for the data flow that the retransmission feedback is designated as retransmitting and the order instruction is the multiple data cell, the data retransmission device 400 also includes：One the second dispensing device, it is used to send all the multiple data cells.
When the retransmission feedback is designated as retransmitting, the pre-coding matrix of the pre-coding matrix instruction is the matrix with selection characteristic, and the number of the order instruction be less than the multiple data cell data flow number when, second retransmission arrangement 402 be additionally operable to according to the pre-coding matrix of the pre-coding matrix instruction determine it is described need retransmit data cell；The data retransmission device 400 also includes the 3rd dispensing device, and it is used to send the data cell that the needs are retransmitted.When the number of the multiple data cell is two, the transmitting antenna number of the mobile terminal is two, and the pre-coding matrix instruction pre-coding matrix be or " during ^, institute
[oj L1" state need retransmit data cell be described two data cells in a data cell.
When the retransmission feedback is designated as retransmitting, the pre-coding matrix of the pre-coding matrix instruction is the matrix without selection characteristic, and the number of the order instruction, when being less than the number of the data flow of the multiple data cell, the number for the data cell that the needs are retransmitted is zero.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and without departing from the spirit or essential characteristics of the present invention, the present invention can be realized in other specific forms.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is limited by appended claims rather than described above, it is intended that all changes Nang fallen in the implication and scope of the equivalency of claim is included in the present invention.Any reference in claim should not be considered as to the claim involved by limitation.Furthermore, it is to be understood that " an including " word is not excluded for other units or step, odd number is not excluded for plural number.The multiple units or device stated in system claims can also be realized by a unit or device by software or hardware.The first, the second grade word is used for representing title, and is not offered as any specific order.
Claims (1)
- Claims1. a kind of method for being used to send retransmission instructions in a network equipment of GSM, this method comprises the following steps：A. the multiple data cells for using spatial multiplexing mode to send by a mobile terminal are received；B. according to the receptivity index of each data cell in the multiple data cell, it is determined that needing the data cell retransmitted, the data cell that the needs are retransmitted is some or all of for the multiple data cell；AndC. a retransmission feedback instruction, a pre-coding matrix instruction and an order instruction are sent to the mobile terminal, informs that the mobile terminal only retransmits the data cell for needing to retransmit by the information included in described three instructions.2. the method according to claim 1, it is characterised in that when the data cell for needing to retransmit is all the multiple data cells, also includes step before the step C：- indicate the retransmission feedback to be set as retransmitting, the pre-coding matrix that the pre-coding matrix of the pre-coding matrix instruction is set as being used according to needed for system performance requirements, and the order instruction is set as to the number of the data flow of the multiple data cell.3. the method according to claim 1, it is characterised in that when the data cell for needing to retransmit is a part for the multiple data cell, also includes step before the step C：- be designated as the retransmission feedback to retransmit, the pre-coding matrix of the pre-coding matrix instruction is set as the pre-coding matrix with selection characteristic, the matrix column number be the needs retransmit data cell data flow number, and by the order instruction be set as the needs retransmit data cell data flow number.4. method according to claim 3, it is characterised in that when the transmitting antenna number that the number of the multiple data cell is two and the mobile terminal is two, the pre-coding matrix of the pre-coding matrix instruction is5. according to the method described in claim 1, it is characterised in that the number of the multiple data cell is two, the retransmission feedback indicates that used resource is 1 bit.6. a kind of method for being used to retransmit data in a mobile terminal of GSM, this method comprises the following steps： A. the instruction of a retransmission feedback, a pre-coding matrix instruction and the order instruction sent by a network equipment is received, described three indicate to be set using multiple data cells that spatial multiplexing mode is sent according to the mobile terminal received by the network equipment；AndB. included information is indicated according to described three, it is determined that needing the data cell retransmitted, the data cell that the needs are retransmitted is some or all of for the multiple data cell.7. method according to claim 6, it is characterised in that when the number for the data flow that the retransmission feedback is designated as retransmitting and the order instruction is the multiple data cell, step is also included after the step b：- send all the multiple data cells.8. method according to claim 6, it is characterized in that, when the retransmission feedback is designated as retransmitting, the pre-coding matrix of the pre-coding matrix instruction is the matrix with selection characteristic, and the number of the order instruction be less than the multiple data cell data flow number when, the step c also include sub-step：- data cell for needing to retransmit is determined according to the pre-coding matrix of the pre-coding matrix instruction；Also include step after the step b：- send the data cell for needing to retransmit.9. method according to claim 8, characterized in that, when the number of the multiple data cell is two, the transmitting antenna number of the mobile terminal is two, and the pre-coding matrix of the pre-coding matrix instruction is when being, the data cell that the needs are retransmitted is instituteState a data cell in two data cells.10. method according to claim 6, it is characterized in that, when the retransmission feedback is designated as retransmitting, the pre-coding matrix of the pre-coding matrix instruction is the matrix without selection characteristic, and the number of the order instruction, when being less than the number of the data flow of the multiple data cell, the number for the data cell that the needs are retransmitted is zero.11. method according to claim 6, it is characterised in that the number of the multiple data cell is two, and the retransmission feedback is designated as 1 bit.12. a kind of retransmission instructions dispensing device for being used to send retransmission instructions in a network equipment of GSM, the device includes： One first receiving device, it is used to receive the multiple data cells for using spatial multiplexing mode to send by a mobile terminal；One first re-transmission determining device, it is used for the receptivity index according to each data cell in the multiple data cell, it is determined that needing the data cell retransmitted, the data cell that the needs are retransmitted is some or all of for the multiple data cell；AndOne the first dispensing device, it is used to send a retransmission feedback instruction, a pre-coding matrix instruction and an order instruction to the mobile terminal, indicates that included information inform that the mobile terminal only retransmits the data cell for needing to retransmit by described three.13. device according to claim 12, it is characterised in that when the data cell for needing to retransmit is all the multiple data cells, the device also includes：One first instruction setting device, it is used to indicate the retransmission feedback to be set as retransmitting, the pre-coding matrix that the pre-coding matrix of the pre-coding matrix instruction is set as being used according to needed for system performance requirements, and the order instruction is set as to the number of the data flow of the multiple data cell.14. device according to claim 12, it is characterised in that when the data cell for needing to retransmit is a part for the multiple data cell, the device also includes：One second instruction setting device, it is used to be designated as the retransmission feedback to retransmit, the pre-coding matrix of the pre-coding matrix instruction is set as the matrix with selection characteristic, the matrix column number be the needs retransmit data cell data flow number, and by the order instruction be set as the needs retransmit data cell data flow number.15. device according to claim 14, it is characterised in that when the transmitting antenna number that the number of the multiple data cell is two and the mobile terminal is two, the pre-coding matrix of the pre-coding matrix instruction is16. device according to claim 12, it is characterised in that the number of the multiple data cell is two, the retransmission feedback indicates that used resource is 1 bit.17. a kind of data retransmission device for being used to retransmit data in a mobile terminal of GSM, the device includes：One the second reception device, it is used to receive the instruction of a retransmission feedback, a pre-coding matrix instruction and the order instruction sent by a network equipment, and described three indicate by the network Equipment is set according to the mobile terminal received using multiple data cells that spatial multiplexing mode is sent；AndOne second re-transmission determining device, it is used to indicate included information according to described three, it is determined that needing the data cell retransmitted, the data cell that the needs are retransmitted is some or all of for the multiple data cell.18. device according to claim 17, it is characterised in that when the number for the data flow that the retransmission feedback is designated as retransmitting and the order instruction is the multiple data cell, the device also includes：One the second dispensing device, it is used to send all the multiple data cells.19. device according to claim 17, it is characterized in that, when the retransmission feedback is designated as retransmitting, the pre-coding matrix of the pre-coding matrix instruction is the matrix with selection characteristic, and the number of the order instruction be less than the multiple data cell data flow number when, second retransmission arrangement be additionally operable to according to the pre-coding matrix of the pre-coding matrix instruction determine it is described need retransmit data cell；The device also includes the 3rd dispensing device, and it is used to send the data cell that the needs are retransmitted.20. device according to claim 19, characterized in that, when the number of the multiple data cell is two, the transmitting antenna number of the mobile terminal is two, and the pre-coding matrix of the pre-coding matrix instruction is when being, the data cell that the needs are retransmitted isA data cell in described two data cells.21. device according to claim 19, it is characterized in that, when the retransmission feedback is designated as retransmitting, the pre-coding matrix of the pre-coding matrix instruction is the matrix without selection characteristic, and the number of the order instruction, when being less than the number of the data flow of the multiple data cell, the number for the data cell that the needs are retransmitted is zero.22. device according to claim 19, it is characterised in that when the number of the multiple data cell is that the transmitting antenna number of two and the mobile terminal is two, the retransmission feedback is designated as 1 bit.
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| PCT/CN2009/000462 WO2010124418A1 (en) | 2009-04-28 | 2009-04-28 | Method and system for controlling the data repeat |
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| WO2010124418A1 (en) | 2010-11-04 |
| CN102301631B (en) | 2014-10-08 |
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