CN101841846B

CN101841846B - Uplink data transmitting method, system and device in TDD (Time Division Duplex) mode based on relay

Info

Publication number: CN101841846B
Application number: CN 200910080264
Authority: CN
Inventors: 张文健; 潘学明; 肖国军; 孙韶辉; 王立波
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2009-03-17
Filing date: 2009-03-17
Publication date: 2012-12-26
Anticipated expiration: 2029-03-17
Also published as: CN101841846A

Abstract

The embodiment of the invention discloses an uplink data transmitting method in the TDD (Time Division Duplex ) mode based on relay. In the method, a relay node device selects a pre-configured first uplink sub-frame from the radio frames, and sends the uplink data to the base station via the first uplink sub-frame. The first uplink sub-frame is other uplink sub-frame in the radio frames except the second uplink sub-frame, and the second uplink sub-frame is used by the terminal to send the uplink data to the relay node device. By adopting the invention, the uplink data can be transmitted by the relay node device to the base station in the communication system which applies the TDD mode and is based on the relay by means of the invention, and both the relay link and the access link can work normally.

Description

Under the tdd mode based on uplink data transmission method, system and the equipment of relaying

Technical field

The present invention relates to wireless communication field, relate in particular under a kind of tdd mode uplink data transmission method, system and equipment based on relaying.

Background technology

In Long Term Evolution (LTE) system, the frame structure under time division duplex (TDD) pattern is as shown in Figure 1, and the length of each radio frames is 10 milliseconds (ms); Comprise two fields (half-frame), each field comprises the subframe (subframe) of 5 1ms again, and each subframe can be divided into the common time slot (slot) of two 0.5ms again; In special subframe (S), comprise 3 special time slots; Be descending pilot frequency time slot (DwPTS, Downlink Pilot Time Slot), protection (GP) time slot and uplink pilot time slot (UpPTS, UplinkPilot Time Slot) at interval; Wherein subframe 0 must be a descending sub frame; The broadcast singal of synchronizing signal, non-scheduling (like MIB) all sends on this subframe, and considers the up-downgoing switching, and subframe 2 must be a sub-frame of uplink.

Two 5ms fields in radio frames can be two identical field structures as shown in Figure 1, promptly are the frame structure in cycle with 5ms, and its proportion of ascending subframe and descending subframe configuration can be 1DL: 3UL, 2DL: 2UL or 3DL: 1UL.Wherein, DL representes descending sub frame, and UL representes sub-frame of uplink.In addition; Consider the compatibility of utilization ratio of wireless resources and different frame structure; Two 5ms fields can be different frame structures also, have only a field to have the special subframe of 1ms (S), and the special subframe in the another one field can flexible configuration be last/descending sub frame; Promptly be the frame structure in cycle with 10ms, its proportion of ascending subframe and descending subframe configuration can be 6DL: 3UL, 7DL: 2UL, 8DL: 1UL or 3DL: 5UL.To sum up, have 7 kinds of uplink/downlink frames structural arrangements types, as shown in the table:

Under tdd mode; Mix automatic repeat requests (HARQ) process and be meant that UE sends data at physical uplink link sharing channel (PUSCH) to the base station, (ACK) or wrong responses (NACK) message are replied according to the reception condition of these data is sent to the terminal at the automatic request retransmission indicating channel of physical mixed (PHICH) in the base station.

For above-mentioned 7 kinds of uplink/downlink frames structural arrangements, HARQ process number is as shown in the table:

Uplink-downlink configuration	HARQ process number
		0	7
1	4
		2	2
3	3
		4	2
5	1
		6	6

Be the method for transmitting uplink data in the example explanation HARQ process below with uplink-downlink configuration 6:

When adopting uplink-downlink configuration 6, have 6 HARQ processes, each HARQ process is to repeat to take identical transmission location the cycle to send upstream data with 60ms, is called the sub-frame of uplink positional cycle of HARQ process this cycle.As shown in Figure 2, process 1 takies No. 2, No. 3, No. 4, No. 7, No. 8 sub-frame of uplink transmit ascending datas of radio frames respectively at preceding 5 10ms in 60ms cycle, and last 1 10ms does not carry out transmitting uplink data; No. 3, No. 4, No. 7, No. 8, No. 2 sub-frame of uplink transmit ascending datas that process 2 takies radio frames respectively at preceding 4 10ms and last 1 10ms in 60ms cycle, the 5th 10ms do not carry out transmitting uplink data; No. 4, No. 7, No. 8, No. 2, No. 3 sub-frame of uplink transmit ascending datas that process 3 takies radio frames respectively at preceding 3 10ms and last 2 10ms in 60ms cycle, the 4th 10ms do not carry out transmitting uplink data; No. 7, No. 8, No. 2, No. 3, No. 4 sub-frame of uplink transmit ascending datas that process 4 takies radio frames respectively at preceding 2 10ms and last 3 10ms in 60ms cycle, the 3rd 10ms do not carry out transmitting uplink data; No. 8, No. 2, No. 3, No. 4, No. 7 sub-frame of uplink transmit ascending datas that process 5 takies radio frames respectively at the 1st 10ms and last 4 10ms in 60ms cycle, the 2nd 10ms do not carry out transmitting uplink data; Process 6 takies No. 2, No. 3, No. 4, No. 7, No. 8 sub-frame of uplink transmit ascending datas of radio frames respectively at last 5 10ms in 60ms cycle, and the 1st 10ms do not carry out transmitting uplink data, and be as shown in the table:

?

10ms

Process

1

#2

#3

#4

#7

#8

Empty

Process

2

#3

#4

#7

#8

Empty

#

2

Process 3

#4

#7

#8

Empty

#

2

#3

Process 4

#7

#8

Empty

#

2

#3

#4

Process 5

#8

Empty

#

2

#3

#4

#7

Process 6

Empty

#

2

#3

#4

#7

#8

Introducing via node (Relay Node; RN) in the LTE system, because the introducing of via node makes the Radio Link of new LTE system based on via node have three: base station (eNB)-Hong terminal (Macro UE) access link, eNB-RN repeated link, RN-link terminal (Relay UE) access link.Consider the signal interference-limited of radio communication, above-mentioned three links need use the Radio Resource of quadrature.The transceiver of via node is the TDD mode of operation simultaneously, so the eNB-RN repeated link need take different time slots with RN-Relay UE access link in the tdd frame structure, separate in the access of RN uplink downlink zone and relaying zone crack on time.But eNB-Macro UE access link zone and eNB-RN relaying zone can coexist; Because for base station (eNB); RN is equivalent to terminal (UE); So in order fully effectively to utilize Radio Resource, eNB-Macro UE access link zone and eNB-RN relaying zone can be time slot coexistences, as long as its running time-frequency resource quadrature just can.

In realizing process of the present invention, the inventor finds to exist in the prior art following technical problem:

In LTE system based on RN, the implementation that does not also have RN how to carry out uplink, therefore, RN can't carry out transmitting uplink data.

Summary of the invention

The embodiment of the invention provides under a kind of tdd mode based on uplink data transmission method, system and the equipment of relaying, is used to solve the problem that RN of the prior art can't carry out transmitting uplink data.

The embodiment of the invention provides under a kind of tdd mode based on the uplink data transmission method of relaying, and this method comprises:

Via node equipment is chosen the first pre-configured sub-frame of uplink in radio frames, and utilizes this first sub-frame of uplink to send upstream data to the base station;

Said first sub-frame of uplink is other sub-frame of uplink except that second sub-frame of uplink in the said radio frames, and said second sub-frame of uplink is that the terminal is used for sending to said via node equipment the sub-frame of uplink of upstream data;

If said radio frames adopts No. 6 uplink/downlink frames structural arrangements in the long-term advancing time division duplex LTE TDD system, the first pre-configured sub-frame of uplink of then in radio frames, choosing is or a combination in any in the following subframe: No. 2 sub-frame of uplink, No. 3 sub-frame of uplink, No. 4 sub-frame of uplink, No. 7 sub-frame of uplink, No. 8 sub-frame of uplink; And the sub-frame of uplink number that comprises in the combination is less than 5;

If said radio frames adopts No. 1 uplink/downlink frames structural arrangements in the LTE TDD system, the first pre-configured sub-frame of uplink of then in radio frames, choosing is or a combination in any in the following subframe: No. 2 sub-frame of uplink, No. 3 sub-frame of uplink, No. 7 sub-frame of uplink, No. 8 sub-frame of uplink; And the sub-frame of uplink number that comprises in the combination is less than 4;

If said radio frames adopts No. 2 uplink/downlink frames structural arrangements in the LTE TDD system, the first pre-configured sub-frame of uplink of then in radio frames, choosing is: No. 2 sub-frame of uplink or No. 7 sub-frame of uplink;

If said radio frames adopts No. 3 uplink/downlink frames structural arrangements in the long-term advancing time division duplex LTE TDD system, the first pre-configured sub-frame of uplink of then in radio frames, choosing is or a combination in any in the following subframe: No. 2 sub-frame of uplink, No. 3 sub-frame of uplink, No. 4 sub-frame of uplink; And the sub-frame of uplink number that comprises in the combination is less than 3;

If said radio frames adopts No. 4 uplink/downlink frames structural arrangements in the long-term advancing time division duplex LTE TDD system, the first pre-configured sub-frame of uplink of then in radio frames, choosing is: No. 2 sub-frame of uplink or No. 3 sub-frame of uplink.

The embodiment of the invention provides under a kind of tdd mode based on the transmitting uplink data system of relaying, and this system comprises:

Via node equipment is used for choosing the first pre-configured sub-frame of uplink in radio frames, and utilizes this first sub-frame of uplink to send upstream data to the base station; Said first sub-frame of uplink is other sub-frame of uplink except that second sub-frame of uplink in the said radio frames, and said second sub-frame of uplink is that the terminal is used for sending to said via node equipment the sub-frame of uplink of upstream data;

The base station is used to receive the upstream data that said via node equipment is sent;

The embodiment of the invention provides a kind of via node equipment, and this via node equipment comprises:

Choose the unit, be used for choosing the first pre-configured sub-frame of uplink in radio frames; Said first sub-frame of uplink is other sub-frame of uplink except that second sub-frame of uplink in the said radio frames, and said second sub-frame of uplink is that the terminal is used for sending to said via node equipment the sub-frame of uplink of upstream data;

Transmission unit is used to utilize said first sub-frame of uplink to send upstream data to the base station;

Among the present invention; Via node equipment is chosen the first pre-configured sub-frame of uplink in radio frames; And utilize this first sub-frame of uplink to send upstream data to the base station; First sub-frame of uplink is other sub-frame of uplink except that second sub-frame of uplink in the radio frames, and second sub-frame of uplink is that the terminal is used for sending to via node equipment the sub-frame of uplink of upstream data, thus realized adopt tdd mode and based on the communication system of RN in realize that via node equipment is to transmission of uplink data.

Description of drawings

Fig. 1 is a frame structure configuration schematic diagram under the tdd mode in the prior art;

Fig. 2 is the exemplary plot of HARQ process in the prior art;

The method flow sketch map that Fig. 3 provides for the embodiment of the invention;

Fig. 4 A is the frame configuration schematic diagram of the embodiment of the invention one;

Fig. 4 B is another frame configuration schematic diagram of the embodiment of the invention one;

Fig. 4 C is the frame configuration schematic diagram of the embodiment of the invention two;

Fig. 4 D is another frame configuration schematic diagram of the embodiment of the invention two;

Fig. 4 E is the frame configuration schematic diagram of the embodiment of the invention three;

Fig. 4 F is another frame configuration schematic diagram of the embodiment of the invention three;

Fig. 4 G is the frame configuration schematic diagram of the embodiment of the invention four;

Fig. 4 H is another frame configuration schematic diagram of the embodiment of the invention four;

Fig. 4 I is the frame configuration schematic diagram of the embodiment of the invention five;

Fig. 4 J is another frame configuration schematic diagram of the embodiment of the invention five;

The system configuration sketch map that Fig. 5 provides for the embodiment of the invention;

The device structure sketch map that Fig. 6 provides for the embodiment of the invention.

Embodiment

In order to realize that at the employing tdd mode and in RN is to transmission of uplink data based on the communication system of RN; The embodiment of the invention provides under a kind of tdd mode the uplink data transmission method based on relaying; In this method; RN is utilized in sub-frame of uplink pre-configured in the radio frames and sends upstream data to the base station, and this sub-frame of uplink is that the subframe that upstream data did not utilize is sent to RN in the terminal.

Between UE and RN the up direction of access link be the terminal to the via node equipment transmission data, down direction is that via node equipment is to the terminal transmission data.Between RN and base station the up direction of repeated link be RN to the base station transmits data, down direction is that data are transmitted to RN in the base station.

Referring to Fig. 3, based on the uplink data transmission method of relaying, specifically may further comprise the steps under the tdd mode that the embodiment of the invention provides:

Step 31: via node equipment is chosen the first pre-configured sub-frame of uplink in radio frames; First sub-frame of uplink is other sub-frame of uplink except that second sub-frame of uplink in the radio frames, and second sub-frame of uplink is that the terminal is used for sending to via node equipment the sub-frame of uplink of upstream data;

Step 32: first sub-frame of uplink that the via node equipment utilization is chosen sends upstream data to the base station.

In the step 31, via node equipment can be chosen first sub-frame of uplink and utilize first sub-frame of uplink of choosing to send this upstream data to the base station after receive the upstream data of sending at the terminal in radio frames; Also can need, the base station in radio frames, choose first sub-frame of uplink and utilize first sub-frame of uplink of choosing to send this upstream data when send this upstream data at self to the base station.

Be used for sending first sub-frame of uplink of upstream data in order to dispose via node equipment to the base station; Before via node equipment is chosen first sub-frame of uplink; One or more ascending HARQ courses of closing a terminal, the number of the ascending HARQ course of closing is less than the sum of the ascending HARQ course at terminal.

Under tdd mode; The HARQ process at terminal is meant that UE sends data at physical uplink link sharing channel (PUSCH) to the base station; (ACK) or wrong responses (NACK) message are replied according to the reception condition of these data is sent to the terminal at the automatic request retransmission indicating channel of physical mixed (PHICH) in the base station, and then whether UE retransmits data according to ACK that receives or the decision of NACK message.For different uplink/downlink frames structural arrangements, the terminal can comprise one or more HARQ processes, and each HARQ process repeats to take identical transmission location with certain cycle and sends upstream data, is called the sub-frame of uplink positional cycle of HARQ process this cycle.A sub-frame of uplink positional cycle can utilize the sub-frame of uplink transmit ascending data in one or more radio frames.

The ascending HARQ course of closing a terminal is meant; Through reconfiguring the frame structure at terminal; Forbid that the terminal continues to utilize the sub-frame of uplink that was used for sending to via node equipment upstream data in the pent ascending HARQ course originally, send upstream data to via node equipment.

When having closed an ascending HARQ course at terminal; The method of pre-configured first sub-frame of uplink is in radio frames: for each radio frames that ascending HARQ course utilized of closing; The sub-frame of uplink that the ascending HARQ course that is used to close in this radio frames is sent upstream data is configured to first sub-frame of uplink; That is: for each radio frames that ascending HARQ course utilized of closing; Confirm that the ascending HARQ course of closing in this radio frames is used for sending the sub-frame of uplink of upstream data, subframe corresponding with this sub-frame of uplink time in the via node equipment is set to first sub-frame of uplink.

When having closed a plurality of ascending HARQ course at terminal; The method of pre-configured first sub-frame of uplink is in radio frames: for each radio frames that a plurality of ascending HARQ course utilized of closing; In this radio frames, choose the sub-frame of uplink that one or more ascending HARQ courses of closing are used for sending upstream data, and the sub-frame of uplink of choosing is configured to first sub-frame of uplink.That is: for each radio frames that ascending HARQ course utilized of closing; Confirm that one or more ascending HARQ courses of closing in this radio frames are used for sending the sub-frame of uplink of upstream data, subframe corresponding with this sub-frame of uplink time in the via node equipment is set to first sub-frame of uplink.The number of the sub-frame of uplink of in a radio frames, choosing here, can be less than or equal to the sum of the HARQ process of closing.

With specific embodiment method provided by the invention is specified below:

Embodiment one:

In the present embodiment, radio frames adopts No. 6 uplink/downlink frames structural arrangements in the LTE TDD system:

The HARQ process 1 of 1, closing a terminal;

Because the HARQ process 1 at terminal takies No. 2, No. 3, No. 4, No. 7, No. 8 sub-frame of uplink transmit ascending datas of radio frames respectively at the first five 10ms of the sub-frame of uplink positional cycle of 60ms; Last 10ms does not carry out transmitting uplink data, and the method that therefore disposes first sub-frame of uplink in the via node equipment is following:

For No. 2 sub-frame of uplink of the corresponding radio frames of first 10ms of HARQ process 1, subframe corresponding with this sub-frame of uplink in the via node equipment is set to first sub-frame of uplink; For No. 3 sub-frame of uplink of the corresponding radio frames of second 10ms of HARQ process 1, subframe corresponding with this sub-frame of uplink in the via node equipment is set to first sub-frame of uplink; For No. 4 sub-frame of uplink of the corresponding radio frames of the 3rd 10ms of HARQ process 1, subframe corresponding with this sub-frame of uplink in the via node equipment is set to first sub-frame of uplink; For No. 7 sub-frame of uplink of the corresponding radio frames of the 4th 10ms of HARQ process 1, subframe corresponding with this sub-frame of uplink in the via node equipment is set to first sub-frame of uplink; For No. 8 sub-frame of uplink of the corresponding radio frames of the 5th 10ms of HARQ process 1, subframe corresponding with this sub-frame of uplink in the via node equipment is set to first sub-frame of uplink.Shown in Fig. 4 A, have first sub-frame of uplink of subframe for being provided with of cross wires.

After the configuration, in first 10ms, No. 2 sub-frame of uplink are used for the transmission of uplink data of repeated link in the via node equipment, and in second 10ms, 3 work song frames are used for the transmission of uplink data of repeated link; In the 3rd 10ms, 4 work song frames are used for the transmission of uplink data of repeated link; In the 4th 10ms, 7 work song frames are used for the transmission of uplink data of repeated link; In the 5th 10ms, 7 work song frames are used for the transmission of uplink data of repeated link; In the 6th 10ms, there is not sub-frame of uplink to be used for the transmission of uplink data of repeated link.Again periodically to 2 work song frames, find out thus in the 7th 10ms, only closed the HARQ process 1 at terminal, do not change the sequential relationship of other processes, make repeated link and the access link can operate as normal.

HARQ process 1 of 2, closing a terminal and HARQ process 4;

Because the HARQ process 1 at terminal takies No. 2, No. 3, No. 4, No. 7, No. 8 sub-frame of uplink transmit ascending datas of radio frames respectively at the first five 10ms of the process repetition period of 60ms, last 10ms does not carry out transmitting uplink data; No. 7, No. 8, No. 2, No. 3, No. 4 sub-frame of uplink transmit ascending datas that process 4 takies radio frames respectively at preceding 2 10ms and last 3 10ms in 60ms cycle, the 3rd 10ms do not carry out transmitting uplink data; Therefore the method that disposes first sub-frame of uplink in the via node equipment is following:

For No. 2 sub-frame of uplink of the corresponding radio frames of first 10ms of HARQ process 1 and HARQ process 4, subframe corresponding with this sub-frame of uplink in the via node equipment is set to first sub-frame of uplink; For No. 3 sub-frame of uplink of the corresponding radio frames of second 10ms of HARQ process 1 and HARQ process 4, subframe corresponding with this sub-frame of uplink in the via node equipment is set to first sub-frame of uplink; For No. 4 sub-frame of uplink of the corresponding radio frames of the 3rd 10ms of HARQ process 1 and HARQ process 4, subframe corresponding with this sub-frame of uplink in the via node equipment is set to first sub-frame of uplink; For No. 2 sub-frame of uplink of the corresponding radio frames of the 4th 10ms of HARQ process 1 and HARQ process 4, subframe corresponding with this sub-frame of uplink in the via node equipment is set to first sub-frame of uplink; For No. 3 sub-frame of uplink of the corresponding radio frames of the 5th 10ms of HARQ process 1 and HARQ process 4, subframe corresponding with this sub-frame of uplink in the via node equipment is set to first sub-frame of uplink; For No. 4 sub-frame of uplink of the corresponding radio frames of the 6th 10ms of HARQ process 1 and HARQ process 4, subframe corresponding with this sub-frame of uplink in the via node equipment is set to first sub-frame of uplink.Shown in Fig. 4 B, have first sub-frame of uplink of subframe for being provided with of cross wires.

After the configuration, in first 10ms, No. 2 sub-frame of uplink are used for the transmission of uplink data of repeated link in the via node equipment, and in second 10ms, 3 work song frames are used for the transmission of uplink data of repeated link; In the 3rd 10ms, 4 work song frames are used for the transmission of uplink data of repeated link; In the 4th 10ms, 2 work song frames are used for the transmission of uplink data of repeated link; In the 5th 10ms, 3 work song frames are used for the transmission of uplink data of repeated link; In the 6th 10ms, 4 work song frames are used for the transmission of uplink data of repeated link.It is thus clear that, close a plurality of processes in this example and the number of first sub-frame of uplink that in a radio frames, disposes when counting less than the HARQ process of closing, variation has taken place in the sub-frame of uplink positional cycle, becomes 30ms by original 60ms.

After the method for employing present embodiment disposes first sub-frame of uplink; Via node equipment is chosen in radio frames and is used for when first sub-frame of uplink of upstream data is sent in the base station; Can choose first sub-frame of uplink according to signaling or the pre-configured selection rule that send the base station; Signaling or the pre-configured selection rule promptly sent according to the base station confirm to choose which first sub-frame of uplink in which radio frames; For example, signaling of sending according to the base station or pre-configured selection rule are chosen first sub-frame of uplink of one or more configurations in next radio frames of the radio frames that receives the upstream data that UE sends; Again for example, signaling of sending according to the base station or pre-configured selection rule are chosen first sub-frame of uplink of a plurality of configurations in following two radio frames of the radio frames that receives the upstream data that UE sends, or the like.

Therefore; Adopt the method for present embodiment to dispose first sub-frame of uplink; First sub-frame of uplink that via node equipment is chosen is or a combination in any in the following subframe: No. 2 sub-frame of uplink, No. 3 sub-frame of uplink, No. 4 sub-frame of uplink, No. 7 sub-frame of uplink, No. 8 sub-frame of uplink, and the sub-frame of uplink number that comprises in the combination is less than 5.

Embodiment two:

In the present embodiment; Radio frames adopts No. 1 uplink/downlink frames structural arrangements in the LTE TDD system; The sub-frame of uplink positional cycle of the HARQ process of No. 1 uplink/downlink frames structural arrangements is 10ms, and there are 4 HARQ processes at the terminal, and HARQ process 1 takies No. 2 sub-frame of uplink transmit ascending datas of radio frames; HARQ process 2 takies No. 3 sub-frame of uplink transmit ascending datas of radio frames; HARQ process 3 takies No. 7 sub-frame of uplink transmit ascending datas of radio frames, and HARQ process 4 takies No. 8 sub-frame of uplink transmit ascending datas of radio frames, below for example:

The HARQ process 1 of 1, closing a terminal;

Therefore to dispose the method for first sub-frame of uplink in the via node equipment following because the HARQ process 1 at terminal takies No. 2 sub-frame of uplink transmit ascending datas of radio frames in the sub-frame of uplink positional cycle of 10ms:

For No. 2 sub-frame of uplink of corresponding radio frames of the 10ms cycle of HARQ process 1, subframe corresponding with this sub-frame of uplink in the via node equipment is set to first sub-frame of uplink.Shown in Fig. 4 C, have first sub-frame of uplink of subframe for being provided with of cross wires.

After the configuration, at 10ms in the cycle, No. 2 sub-frame of uplink are used for the transmission of uplink data of repeated link in the via node equipment.

HARQ process 1 of 2, closing a terminal and HARQ process 4;

Because the HARQ process 1 at terminal takies No. 2 sub-frame of uplink transmit ascending datas of radio frames at 10ms in the cycle, process 4 takies No. 8 sub-frame of uplink transmit ascending datas of radio frames at 10ms in the cycle.Therefore the method that disposes first sub-frame of uplink in the via node equipment is following:

For No. 2 and No. 8 sub-frame of uplink of the radio frames of HARQ process 1 and HARQ process 4, be set to first sub-frame of uplink with these No. 2 and No. 8 corresponding subframes of sub-frame of uplink in the via node equipment.Shown in Fig. 4 D, have first sub-frame of uplink of subframe for being provided with of cross wires.

After the configuration, at 10ms in the cycle, No. 2 and No. 8 sub-frame of uplink are used for the transmission of uplink data of repeated link in the via node equipment.

After the method for employing present embodiment disposes first sub-frame of uplink; Via node equipment is chosen in radio frames and is used for when first sub-frame of uplink of upstream data is sent in the base station; Can choose first sub-frame of uplink according to signaling or the pre-configured selection rule that send the base station, signaling or the pre-configured selection rule promptly sent according to the base station confirm to choose which first sub-frame of uplink in which radio frames.

Therefore; Adopt the method for present embodiment to dispose first sub-frame of uplink; First sub-frame of uplink that via node equipment is chosen is or a combination in any in the following subframe: No. 2 sub-frame of uplink, No. 3 sub-frame of uplink, No. 7 sub-frame of uplink, No. 8 sub-frame of uplink, and the sub-frame of uplink number that comprises in the combination is less than 4.

Embodiment three:

In the present embodiment; Radio frames adopts No. 2 uplink/downlink frames structural arrangements in the LTE TDD system; The sub-frame of uplink positional cycle of the HARQ process of No. 2 uplink/downlink frames structural arrangements is 10ms, and there are 2 HARQ processes at the terminal, and HARQ process 1 takies No. 2 sub-frame of uplink transmit ascending datas of radio frames; HARQ process 2 takies No. 7 sub-frame of uplink transmit ascending datas of radio frames, below for example:

The HARQ process 2 of 1, closing a terminal;

Therefore to dispose the method for first sub-frame of uplink in the via node equipment following because the HARQ process 2 at terminal takies No. 7 sub-frame of uplink transmit ascending datas of radio frames in the sub-frame of uplink positional cycle of 10ms:

For No. 7 sub-frame of uplink of corresponding radio frames of the 10ms cycle of HARQ process 1, subframe corresponding with this sub-frame of uplink in the via node equipment is set to first sub-frame of uplink.Shown in Fig. 4 E, have first sub-frame of uplink of subframe for being provided with of cross wires.

After the configuration, at 10ms in the cycle, No. 7 sub-frame of uplink are used for the transmission of uplink data of repeated link in the via node equipment.

HARQ process 1 of 2, closing a terminal and HARQ process 2;

Because the HARQ process 1 at terminal takies No. 2 sub-frame of uplink transmit ascending datas of radio frames at 10ms in the cycle, process 2 takies No. 7 sub-frame of uplink transmit ascending datas of radio frames at 10ms in the cycle.Therefore the method that disposes first sub-frame of uplink in the via node equipment is following:

For No. 2 and No. 7 sub-frame of uplink of the radio frames of HARQ process 1 and HARQ process 2, be set to first sub-frame of uplink with these No. 2 and No. 7 corresponding subframes of sub-frame of uplink in the via node equipment.Shown in Fig. 4 F, have first sub-frame of uplink of subframe for being provided with of cross wires.

After the configuration, at 10ms in the cycle, No. 2 and No. 7 sub-frame of uplink are used for the transmission of uplink data of repeated link in the via node equipment.

Therefore, adopt the method for present embodiment to dispose first sub-frame of uplink, first sub-frame of uplink that via node equipment is chosen is: No. 2 sub-frame of uplink or No. 7 sub-frame of uplink.

Embodiment four:

In the present embodiment; Radio frames adopts No. 3 uplink/downlink frames structural arrangements in the LTE TDD system, and the sub-frame of uplink positional cycle of the HARQ process of No. 3 uplink/downlink frames structural arrangements is 10ms, and there are 3 HARQ processes at the terminal; HARQ process 1 takies No. 2 sub-frame of uplink transmit ascending datas of radio frames; HARQ process 2 takies No. 3 sub-frame of uplink transmit ascending datas of radio frames, and HARQ process 3 takies No. 4 sub-frame of uplink transmit ascending datas of radio frames, below for example:

The HARQ process 2 of 1, closing a terminal;

Therefore to dispose the method for first sub-frame of uplink in the via node equipment following because the HARQ process 3 at terminal takies No. 4 sub-frame of uplink transmit ascending datas of radio frames in the sub-frame of uplink positional cycle of 10ms:

For No. 4 sub-frame of uplink of corresponding radio frames of the 10ms cycle of HARQ process 3, subframe corresponding with this sub-frame of uplink in the via node equipment is set to first sub-frame of uplink.Shown in Fig. 4 G, have first sub-frame of uplink of subframe for being provided with of cross wires.

After the configuration, at 10ms in the cycle, No. 4 sub-frame of uplink are used for the transmission of uplink data of repeated link in the via node equipment.

HARQ process 1 of 2, closing a terminal and HARQ process 3;

Because the HARQ process 1 at terminal takies No. 2 sub-frame of uplink transmit ascending datas of radio frames at 10ms in the cycle, process 3 takies No. 4 sub-frame of uplink transmit ascending datas of radio frames at 10ms in the cycle.Therefore the method that disposes first sub-frame of uplink in the via node equipment is following:

For No. 2 and No. 4 sub-frame of uplink of the radio frames of HARQ process 1 and HARQ process 3, be set to first sub-frame of uplink with these No. 2 and No. 4 corresponding subframes of sub-frame of uplink in the via node equipment.Shown in Fig. 4 H, have first sub-frame of uplink of subframe for being provided with of cross wires.

After the configuration, at 10ms in the cycle, No. 2 and No. 4 sub-frame of uplink are used for the transmission of uplink data of repeated link in the via node equipment.

Therefore; Adopt the method for present embodiment to dispose first sub-frame of uplink; First sub-frame of uplink that via node equipment is chosen is or a combination in any in the following subframe: No. 2 sub-frame of uplink, No. 3 sub-frame of uplink, No. 4 sub-frame of uplink, and the sub-frame of uplink number that comprises in the combination is less than 3.

Embodiment five:

In the present embodiment; Radio frames adopts No. 4 uplink/downlink frames structural arrangements in the LTE TDD system; The sub-frame of uplink positional cycle of the HARQ process of No. 4 uplink/downlink frames structural arrangements is 10ms, and there are 2 HARQ processes at the terminal, and HARQ process 1 takies No. 2 sub-frame of uplink transmit ascending datas of radio frames; HARQ process 2 takies No. 3 sub-frame of uplink transmit ascending datas of radio frames, below for example:

The HARQ process 2 of 1, closing a terminal;

Therefore to dispose the method for first sub-frame of uplink in the via node equipment following because the HARQ process 2 at terminal takies No. 3 sub-frame of uplink transmit ascending datas of radio frames in the sub-frame of uplink positional cycle of 10ms:

For No. 3 sub-frame of uplink of corresponding radio frames of the 10ms cycle of HARQ process 1, subframe corresponding with this sub-frame of uplink in the via node equipment is set to first sub-frame of uplink.Shown in Fig. 4 I, have first sub-frame of uplink of subframe for being provided with of cross wires.

After the configuration, at 10ms in the cycle, No. 3 sub-frame of uplink are used for the transmission of uplink data of repeated link in the via node equipment.

HARQ process 1 of 2, closing a terminal and HARQ process 2;

Because the HARQ process 1 at terminal takies No. 2 sub-frame of uplink transmit ascending datas of radio frames at 10ms in the cycle, process 2 takies No. 3 sub-frame of uplink transmit ascending datas of radio frames at 10ms in the cycle.Therefore the method that disposes first sub-frame of uplink in the via node equipment is following:

For No. 2 and No. 3 sub-frame of uplink of the radio frames of HARQ process 1 and HARQ process 2, be set to first sub-frame of uplink with these No. 2 and No. 3 corresponding subframes of sub-frame of uplink in the via node equipment.Shown in Fig. 4 J, have first sub-frame of uplink of subframe for being provided with of cross wires.

After the configuration, at 10ms in the cycle, No. 2 and No. 3 sub-frame of uplink are used for the transmission of uplink data of repeated link in the via node equipment.

Therefore, adopt the method for present embodiment to dispose first sub-frame of uplink, first sub-frame of uplink that via node equipment is chosen is: No. 2 sub-frame of uplink or No. 3 sub-frame of uplink.

Referring to Fig. 5, the embodiment of the invention also provides under a kind of tdd mode based on the transmitting uplink data system of relaying, and this system comprises:

Via node equipment 51 is used for choosing the first pre-configured sub-frame of uplink in radio frames, and utilizes this first sub-frame of uplink to send upstream data to the base station; Said first sub-frame of uplink is other sub-frame of uplink except that second sub-frame of uplink in the said radio frames, and said second sub-frame of uplink is that terminal 50 is used for sending to said via node equipment the sub-frame of uplink of upstream data;

Base station 52 is used to receive the upstream data that said via node equipment is sent.

Said via node equipment 51 is used for:

Behind 50 the ascending HARQ course of closing a terminal, for each radio frames that ascending HARQ course utilized of closing, the sub-frame of uplink that the ascending HARQ course that is used to close in this radio frames is sent upstream data is configured to first sub-frame of uplink.

Said via node equipment 51 is used for:

Behind 50 a plurality of ascending HARQ courses of closing a terminal; For each radio frames that a plurality of ascending HARQ course utilized of closing; In this radio frames, choose the sub-frame of uplink that one or more ascending HARQ courses of closing are used to send upstream data, and the sub-frame of uplink of choosing is configured to first sub-frame of uplink.The number of the sub-frame of uplink of in radio frames, choosing is less than or equal to the sum of the HARQ process of closing, and the ascending HARQ course number of closing is less than the sum of the ascending HARQ course at said terminal.

Referring to Fig. 6, the embodiment of the invention also provides a kind of via node equipment, can be applied under the tdd mode based on the transmitting uplink data system of relaying, and this via node equipment comprises:

Choose unit 61, be used for choosing the first pre-configured sub-frame of uplink in radio frames; Said first sub-frame of uplink is other sub-frame of uplink except that second sub-frame of uplink in the said radio frames, and said second sub-frame of uplink is that the terminal is used for sending to said via node equipment the sub-frame of uplink of upstream data;

Transmission unit 62 is used to utilize said first sub-frame of uplink to send upstream data to the base station.

This via node equipment also comprises:

Receiving element 60 is used for the upstream data that receiving terminal is sent; Then transmission unit 62 is used for: utilize said first sub-frame of uplink to send said upstream data to the base station.

This via node equipment also comprises:

First dispensing unit 63; Be used for behind an ascending HARQ course of closing a terminal; For each radio frames that ascending HARQ course utilized of closing, the sub-frame of uplink that the ascending HARQ course that is used to close in this radio frames is sent upstream data is configured to first sub-frame of uplink.

This via node equipment also comprises:

Second dispensing unit 64; Be used for behind a plurality of ascending HARQ courses of closing a terminal; For each radio frames that a plurality of ascending HARQ course utilized of closing; In this radio frames, choose the sub-frame of uplink that one or more ascending HARQ courses of closing are used to send upstream data, and the sub-frame of uplink of choosing is configured to first sub-frame of uplink.The number of the sub-frame of uplink of in radio frames, choosing is less than or equal to the sum of the HARQ process of closing, and the ascending HARQ course number of closing is less than the sum of the ascending HARQ course at said terminal.

Choosing unit 61 is used for:

If said radio frames adopts No. 6 uplink/downlink frames structural arrangements in the LTE TDD system; The first pre-configured sub-frame of uplink of then in radio frames, choosing is or a combination in any in the following subframe: No. 2 sub-frame of uplink, No. 3 sub-frame of uplink, No. 4 sub-frame of uplink, No. 7 sub-frame of uplink, No. 8 sub-frame of uplink, and the sub-frame of uplink number that comprises in the combination is less than 5;

If said radio frames adopts No. 1 uplink/downlink frames structural arrangements in the LTE TDD system; The first pre-configured sub-frame of uplink of then in radio frames, choosing is or a combination in any in the following subframe: No. 2 sub-frame of uplink, No. 3 sub-frame of uplink, No. 7 sub-frame of uplink, No. 8 sub-frame of uplink, and the sub-frame of uplink number that comprises in the combination is less than 4;

If said radio frames adopts No. 3 uplink/downlink frames structural arrangements in the LTE TDD system; The first pre-configured sub-frame of uplink of then in radio frames, choosing is or a combination in any in the following subframe: No. 2 sub-frame of uplink, No. 3 sub-frame of uplink, No. 4 sub-frame of uplink, and the sub-frame of uplink number that comprises in the combination is less than 3;

If said radio frames adopts No. 4 uplink/downlink frames structural arrangements in the LTE TDD system, the first pre-configured sub-frame of uplink of then in radio frames, choosing is: No. 2 sub-frame of uplink or No. 3 sub-frame of uplink.

To sum up, beneficial effect of the present invention comprises:

In the scheme that the embodiment of the invention provides; Via node equipment is chosen the first pre-configured sub-frame of uplink in radio frames; And utilize this first sub-frame of uplink to send upstream data to the base station; First sub-frame of uplink is other sub-frame of uplink except that second sub-frame of uplink in the radio frames; Second sub-frame of uplink is that the terminal is used for sending to via node equipment the sub-frame of uplink of upstream data, thus realized adopt tdd mode and based on the communication system of RN in realize that via node equipment is to transmission of uplink data.

And; Through sending other sub-frame of uplink the sub-frame of uplink that upstream data utilized except that the terminal to via node equipment in the via node equipment utilization radio frames; Send upstream data to the base station; Can avoid via node equipment and terminal to adopt sub-frame of uplink identical in the same radio frames to send upstream data, thereby avoid the ascending HARQ course of UE-RN access link to interrupt.

For example; When radio frames adopts No. 6 uplink/downlink frames structural arrangements of LTE TDD system; Because two 5ms field uplink-downlink configuration of this frame structure configuration are asymmetric; The re-transmission positional cycle of ascending HARQ course sexually revises, and through the ascending HARQ course that employing is closed a terminal, the sub-frame of uplink in the ascending HARQ course that the via node equipment utilization is closed sends upstream data to the base station; Can under the condition of the ascending HARQ course that only reduces the terminal, not change the sequential relationship of other ascending HARQ courses, make all ability operate as normal of RN-eNB repeated link and UE-RN access link.

Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.

Claims

Under the TDD pattern based on the uplink data transmission method of relaying, it is characterized in that this method comprises:

Via node equipment is chosen the first pre-configured sub-frame of uplink in radio frames, and utilizes this first sub-frame of uplink to send upstream data to the base station;

Said first sub-frame of uplink is other sub-frame of uplink except that second sub-frame of uplink in the said radio frames, and said second sub-frame of uplink is that the terminal is used for sending to said via node equipment the sub-frame of uplink of upstream data;

If said radio frames adopts No. 6 uplink/downlink frames structural arrangements in the long-term advancing time division duplex LTE TDD system, the first pre-configured sub-frame of uplink of then in radio frames, choosing is or a combination in any in the following subframe: No. 2 sub-frame of uplink, No. 3 sub-frame of uplink, No. 4 sub-frame of uplink, No. 7 sub-frame of uplink, No. 8 sub-frame of uplink; And the sub-frame of uplink number that comprises in the combination is less than 5;

If said radio frames adopts No. 1 uplink/downlink frames structural arrangements in the LTE TDD system, the first pre-configured sub-frame of uplink of then in radio frames, choosing is or a combination in any in the following subframe: No. 2 sub-frame of uplink, No. 3 sub-frame of uplink, No. 7 sub-frame of uplink, No. 8 sub-frame of uplink; And the sub-frame of uplink number that comprises in the combination is less than 4;

If said radio frames adopts No. 2 uplink/downlink frames structural arrangements in the LTE TDD system, the first pre-configured sub-frame of uplink of then in radio frames, choosing is: No. 2 sub-frame of uplink or No. 7 sub-frame of uplink;

If said radio frames adopts No. 3 uplink/downlink frames structural arrangements in the long-term advancing time division duplex LTE TDD system, the first pre-configured sub-frame of uplink of then in radio frames, choosing is or a combination in any in the following subframe: No. 2 sub-frame of uplink, No. 3 sub-frame of uplink, No. 4 sub-frame of uplink; And the sub-frame of uplink number that comprises in the combination is less than 3;

If said radio frames adopts No. 4 uplink/downlink frames structural arrangements in the long-term advancing time division duplex LTE TDD system, the first pre-configured sub-frame of uplink of then in radio frames, choosing is: No. 2 sub-frame of uplink or No. 3 sub-frame of uplink.
2. the method for claim 1 is characterized in that, via node equipment was chosen the first pre-configured sub-frame of uplink in radio frames before, this method further comprised:

Close the automatic repeat requests HARQ process of a up mixing at said terminal;

Pre-configured first sub-frame of uplink comprises in radio frames:

For each radio frames that ascending HARQ course utilized of closing, the sub-frame of uplink that the ascending HARQ course that is used to close in this radio frames is sent upstream data is configured to first sub-frame of uplink.
3. the method for claim 1 is characterized in that, via node equipment was chosen the first pre-configured sub-frame of uplink in radio frames before, this method further comprised:

Close a plurality of ascending HARQ courses at said terminal;

Pre-configured first sub-frame of uplink comprises in radio frames:

For each radio frames that a plurality of ascending HARQ course utilized of closing, in this radio frames, choose the sub-frame of uplink that one or more ascending HARQ courses of closing are used to send upstream data, and the sub-frame of uplink of choosing is configured to first sub-frame of uplink.
4. method as claimed in claim 3; It is characterized in that; The first sub-frame of uplink number of in radio frames, choosing is less than or equal to the sum of the ascending HARQ course of closing, and the ascending HARQ course number of closing is less than the sum of the ascending HARQ course at said terminal.
Under the tdd mode based on the transmitting uplink data system of relaying, it is characterized in that this system comprises:

Via node equipment is used for choosing the first pre-configured sub-frame of uplink in radio frames, and utilizes this first sub-frame of uplink to send upstream data to the base station; Said first sub-frame of uplink is other sub-frame of uplink except that second sub-frame of uplink in the said radio frames, and said second sub-frame of uplink is that the terminal is used for sending to said via node equipment the sub-frame of uplink of upstream data;

The base station is used to receive the upstream data that said via node equipment is sent;

If said radio frames adopts No. 6 uplink/downlink frames structural arrangements in the long-term advancing time division duplex LTE TDD system, the first pre-configured sub-frame of uplink of then in radio frames, choosing is or a combination in any in the following subframe: No. 2 sub-frame of uplink, No. 3 sub-frame of uplink, No. 4 sub-frame of uplink, No. 7 sub-frame of uplink, No. 8 sub-frame of uplink; And the sub-frame of uplink number that comprises in the combination is less than 5;

If said radio frames adopts No. 1 uplink/downlink frames structural arrangements in the LTE TDD system, the first pre-configured sub-frame of uplink of then in radio frames, choosing is or a combination in any in the following subframe: No. 2 sub-frame of uplink, No. 3 sub-frame of uplink, No. 7 sub-frame of uplink, No. 8 sub-frame of uplink; And the sub-frame of uplink number that comprises in the combination is less than 4;

If said radio frames adopts No. 2 uplink/downlink frames structural arrangements in the LTE TDD system, the first pre-configured sub-frame of uplink of then in radio frames, choosing is: No. 2 sub-frame of uplink or No. 7 sub-frame of uplink;

If said radio frames adopts No. 3 uplink/downlink frames structural arrangements in the long-term advancing time division duplex LTE TDD system, the first pre-configured sub-frame of uplink of then in radio frames, choosing is or a combination in any in the following subframe: No. 2 sub-frame of uplink, No. 3 sub-frame of uplink, No. 4 sub-frame of uplink; And the sub-frame of uplink number that comprises in the combination is less than 3;

If said radio frames adopts No. 4 uplink/downlink frames structural arrangements in the long-term advancing time division duplex LTE TDD system, the first pre-configured sub-frame of uplink of then in radio frames, choosing is: No. 2 sub-frame of uplink or No. 3 sub-frame of uplink.
6. system as claimed in claim 5 is characterized in that, said via node equipment is used for:

Behind an ascending HARQ course of closing a terminal, for each radio frames that ascending HARQ course utilized of closing, the sub-frame of uplink that the ascending HARQ course that is used to close in this radio frames is sent upstream data is configured to first sub-frame of uplink.
7. system as claimed in claim 5 is characterized in that, said via node equipment is used for:

Behind a plurality of ascending HARQ courses of closing a terminal; For each radio frames that a plurality of ascending HARQ course utilized of closing; In this radio frames, choose the sub-frame of uplink that one or more ascending HARQ courses of closing are used to send upstream data, and the sub-frame of uplink of choosing is configured to first sub-frame of uplink.
8. a via node equipment is characterized in that, this via node equipment comprises:

Choose the unit, be used for choosing the first pre-configured sub-frame of uplink in radio frames; Said first sub-frame of uplink is other sub-frame of uplink except that second sub-frame of uplink in the said radio frames, and said second sub-frame of uplink is that the terminal is used for sending to said via node equipment the sub-frame of uplink of upstream data;

Transmission unit is used to utilize said first sub-frame of uplink to send upstream data to the base station;

If said radio frames adopts No. 6 uplink/downlink frames structural arrangements in the long-term advancing time division duplex LTE TDD system, the first pre-configured sub-frame of uplink of then in radio frames, choosing is or a combination in any in the following subframe: No. 2 sub-frame of uplink, No. 3 sub-frame of uplink, No. 4 sub-frame of uplink, No. 7 sub-frame of uplink, No. 8 sub-frame of uplink; And the sub-frame of uplink number that comprises in the combination is less than 5;

If said radio frames adopts No. 1 uplink/downlink frames structural arrangements in the LTE TDD system, the first pre-configured sub-frame of uplink of then in radio frames, choosing is or a combination in any in the following subframe: No. 2 sub-frame of uplink, No. 3 sub-frame of uplink, No. 7 sub-frame of uplink, No. 8 sub-frame of uplink; And the sub-frame of uplink number that comprises in the combination is less than 4;

If said radio frames adopts No. 2 uplink/downlink frames structural arrangements in the LTE TDD system, the first pre-configured sub-frame of uplink of then in radio frames, choosing is: No. 2 sub-frame of uplink or No. 7 sub-frame of uplink;

If said radio frames adopts No. 3 uplink/downlink frames structural arrangements in the long-term advancing time division duplex LTE TDD system, the first pre-configured sub-frame of uplink of then in radio frames, choosing is or a combination in any in the following subframe: No. 2 sub-frame of uplink, No. 3 sub-frame of uplink, No. 4 sub-frame of uplink; And the sub-frame of uplink number that comprises in the combination is less than 3;

If said radio frames adopts No. 4 uplink/downlink frames structural arrangements in the long-term advancing time division duplex LTE TDD system, the first pre-configured sub-frame of uplink of then in radio frames, choosing is: No. 2 sub-frame of uplink or No. 3 sub-frame of uplink.
9. via node equipment as claimed in claim 8 is characterized in that, this via node equipment also comprises:

First dispensing unit; Be used for behind an ascending HARQ course of closing a terminal; For each radio frames that ascending HARQ course utilized of closing, the sub-frame of uplink that the ascending HARQ course that is used to close in this radio frames is sent upstream data is configured to first sub-frame of uplink.
10. via node equipment as claimed in claim 8 is characterized in that, this via node equipment also comprises:

Second dispensing unit; Be used for behind a plurality of ascending HARQ courses of closing a terminal; For each radio frames that a plurality of ascending HARQ course utilized of closing; In this radio frames, choose the sub-frame of uplink that one or more ascending HARQ courses of closing are used to send upstream data, and the sub-frame of uplink of choosing is configured to first sub-frame of uplink.
11. via node equipment as claimed in claim 10 is characterized in that, said second dispensing unit is used for:

The number of first sub-frame of uplink of in radio frames, choosing is less than or equal to the sum of the ascending HARQ course of closing, and the ascending HARQ course number of closing is less than the sum of the ascending HARQ course at said terminal.