CN103036657A

CN103036657A - Method and device for data transmission

Info

Publication number: CN103036657A
Application number: CN201110293734XA
Authority: CN
Inventors: 陈小波; 李洋; 李超君
Original assignee: Huawei Technologies Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2011-09-30
Filing date: 2011-09-30
Publication date: 2013-04-10
Anticipated expiration: 2031-09-30
Also published as: WO2013044880A1; CN103036657B

Abstract

An embodiment of the invention discloses a data transmission method. The data transmission method includes: a downlink sub-frame or a special sub-frame in a first wireless frame receives download data sent by a base station; in a second wireless frame, a first uplink sub-frame is used for sending response information to the base station, wherein time interval of the downlink sub-frame or a special sub-frame in the first wireless frame and the first uplink sub-frame meets requirements of a time threshold; first periodic time is the time interval between the downlink sub-frame or the special sub-frame for transmitting downlink data and an uplink sub-frame for reflecting response information of the download data according to uplink and downlink ratio of the first wireless frame, the second wireless frame is an adjacent frame of the first wireless frame, and uplink and downlink ratio of the second wireless frame is different from the uplink and downlink ratio of the first wireless frame. When the uplink and downlink ratio is changed, response information feedback can be correctly performed between user equipment and the base station. Use efficiency of a system resource is improved.

Description

A kind of data transmission method and device

Technical field

The embodiment of the invention relates to communication technical field, relates in particular to a kind of data transmission method and device.

Background technology

In a new generation's communication system, HARQ (Hybrid Automatic Repeat Request, the mixed automatic retransfer request) be in conjunction with FEC (Forward Error Correction, forward error correction coding) and the combined errors control mode of ARQ (Automatic Repeat ReQuest, HARQ).The main implementation procedure of HARQ comprises: transmitting terminal sends new data, and receiving terminal carries out buffer memory and separates code check the data of receiving, sends to transmitting terminal according to check results and determines (ACK) or the non-feedback information of determining (NACK).If transmitting terminal is received definite feedback information, then begin to send new data; If transmitting terminal is received non-deterministic feedback information, illustrate that then transmitting terminal sends data and makes mistakes, transmitting terminal need to resend the error data of last time, and receiving terminal merges decoding with the data retransmission of receiving and error data last time in the buffer memory, solves correct data.

Under TDD (Time Division Duplex, time division duplex) pattern, a radio frames length is 10ms (millisecond), wherein comprise 10 subframes, each subframe lengths is 1ms, and wherein, the subframe that is used for transmitting uplink data is called sub-frame of uplink, U represents with symbol, the subframe that is used for downlink data transmission is called descending sub frame, and D represents with symbol, also has the conversion subframe at descending sub frame in the middle of the conversion of sub-frame of uplink, maybe can be called special subframe, S represents with symbol.The TDD system pattern of LTE is supported multiple different up-downgoing proportioning, and at descending sub frame constantly, the network equipment can send downlink data packet to subscriber equipment; At sub-frame of uplink constantly, subscriber equipment can send the upstream data bag to the network equipment.At special subframe constantly, the network equipment can send downlink data packet to subscriber equipment.

But when the up-downgoing proportioning of radio frames changed, the defective that can exist feedback information and data retransmission to transmit smoothly affected the service efficiency of system resource.

Summary of the invention

The purpose of the embodiment of the invention provides a kind of data transmission method and device, realizes the smooth transmission of data.

The purpose of the embodiment of the invention is achieved through the following technical solutions:

On the one hand, the embodiment of the invention provides a kind of data transmission method, comprising:

Receive the downlink data that the base station sends by the descending sub frame in the first radio frames or special subframe;

When the first timing according to described the first radio frames, when determining to use sub-frame of uplink in described the first radio frames to feed back the response message of described downlink data, then in the second radio frames, use and satisfy first sub-frame of uplink that time threshold requires with the time interval of the described descending sub frame of described the first radio frames or described special subframe and send described response message to described base station;

Wherein, described the first timing is the time interval between the sub-frame of uplink of response message of the descending sub frame of up-downgoing proportioning, transmitting downlink data according to described the first radio frames or special subframe and the described downlink data of feedback, and the consecutive frame that described the second radio frames is described the first radio frames and the up-downgoing proportioning of described the second radio frames are different from the up-downgoing proportioning of described the first radio frames.

Corresponding, a kind of data transmission device of the embodiment of the invention comprises:

Receiving element is used for receiving the downlink data that the base station sends by descending sub frame or the special subframe of the first radio frames;

Whether processing unit be used for is determined the first timing according to described the first radio frames, can use sub-frame of uplink in described the first radio frames to feed back the response message of described downlink data;

Transmitting element, be used for when the first timing according to described the first radio frames, when determining to use sub-frame of uplink in described the first radio frames to feed back the response message of described downlink data, then in the second radio frames, use and satisfy first sub-frame of uplink that time threshold requires with the time interval of the described descending sub frame of described the first radio frames or described special subframe and send described response message to described base station;

On the other hand, the embodiment of the invention provides a kind of data transmission method, comprising:

Receive the upstream data that subscriber equipment sends by the sub-frame of uplink in the first radio frames;

When the second timing according to described the first radio frames, when determining to use the response message that descending sub frame in described the first radio frames or special subframe feed back described upstream data, then in the second radio frames, use and satisfy descending sub frame or the special subframe that time threshold requires with the time interval of the described sub-frame of uplink of described the first radio frames and send described response message to described subscriber equipment;

Wherein, described the second timing is the descending sub frame of response message of the sub-frame of uplink of up-downgoing proportioning, transmit ascending data according to described the first radio frames and the described upstream data of feedback or the time interval between the special subframe, and the consecutive frame that described the second radio frames is described the first radio frames and the up-downgoing proportioning of described the second radio frames are different from the up-downgoing proportioning of described the first radio frames.

Corresponding, the embodiment of the invention provides a kind of data transmission device

Receiving element is used for receiving the upstream data that subscriber equipment sends by the sub-frame of uplink of the first radio frames;

Processing unit be used for to be determined the second timing according to described the first radio frames, the response message that whether can use descending sub frame in described the first radio frames or special subframe to feed back described upstream data;

Transmitting element, be used for when the second timing according to described the first radio frames, when determining to use the response message that descending sub frame in described the first radio frames or special subframe feed back described upstream data, then in the second radio frames, use and satisfy descending sub frame or the special subframe that time threshold requires with the time interval of the described sub-frame of uplink of described the first radio frames and send described response message to described subscriber equipment;

The 3rd timing according to the second radio frames, determine that the scheduling authorization order that can't receive by descending sub frame or the special subframe of described the second radio frames dispatches the upstream data in the sub-frame of uplink of described the second radio frames, then in the first radio frames, receive the scheduling authorization order that the base station sends from satisfying nearest descending sub frame that time threshold requires or the special subframe with the time interval of the sub-frame of uplink of the second radio frames;

When successfully receiving the scheduling authorization order, send the upstream data of described scheduling authorization command scheduling to the base station at the described sub-frame of uplink of described the second radio frames;

Wherein, described the second radio frames is the consecutive frame of described the first radio frames, and the up-downgoing proportioning of described the second radio frames is different from the up-downgoing proportioning of described the first radio frames, and described the 3rd timing is the time interval between descending sub frame or the special subframe of up-downgoing proportioning, receiving scheduling authorization command according to described the second radio frames and the sub-frame of uplink that sends described upstream data.

Corresponding, the embodiment of the invention provides a kind of data transmission device, comprising:

Processing unit be used for to be determined the 3rd timing according to the second radio frames, and the upstream data in the sub-frame of uplink of described the second radio frames is dispatched in the scheduling authorization order that whether can receive by descending sub frame or the special subframe of described the second radio frames;

Receiving element, be used for the 3rd timing according to described the second radio frames, determine that the scheduling authorization order that can't receive by descending sub frame or the special subframe of described the second radio frames dispatches the upstream data in the sub-frame of uplink of described the second radio frames, then in the first radio frames, receive the scheduling authorization order that the base station sends from satisfying nearest descending sub frame that time threshold requires or the special subframe with the time interval of the sub-frame of uplink of the second radio frames;

Transmitting element is used for when successfully receiving the scheduling authorization order, sends the upstream data of described scheduling authorization command scheduling to the base station at the described sub-frame of uplink of described the second radio frames;

On the other hand, the embodiment of the invention provides a kind of data transmission method to comprise:

The 3rd timing according to the second radio frames, determine that the scheduling authorization order that can't send by descending sub frame or the special subframe of described the second radio frames dispatches the upstream data in the sub-frame of uplink of described the second radio frames, then in the first radio frames, use and satisfy nearest descending sub frame or the special subframe that time threshold requires with the time interval of the sub-frame of uplink of described the second radio frames and send described scheduling authorization order to described subscriber equipment;

Described sub-frame of uplink in described the second radio frames receives the described upstream data that described subscriber equipment sends;

Wherein, described the second radio frames is the consecutive frame of described the first radio frames, and the up-downgoing proportioning of described the second radio frames is different from the up-downgoing proportioning of described the first radio frames, and described the 3rd timing is the time interval between the up-downgoing proportioning according to described the second radio frames, the descending sub frame that sends the scheduling authorization order or special subframe and the sub-frame of uplink that receives described upstream data.

Processing unit be used for to be determined the 3rd timing according to the second radio frames, and the upstream data in the sub-frame of uplink of described the second radio frames is dispatched in the scheduling authorization order that whether can send by descending sub frame or the special subframe of described the second radio frames;

Transmitting element, be used for the 3rd timing according to the second radio frames, determine that the scheduling authorization order that can't send by descending sub frame or the special subframe of described the second radio frames dispatches the upstream data in the sub-frame of uplink of described the second radio frames, then in the first radio frames, use and satisfy nearest descending sub frame or the special subframe that time threshold requires with the time interval of the sub-frame of uplink of described the second radio frames and send described scheduling authorization order to described subscriber equipment;

Receiving element is used for receiving the described upstream data that described subscriber equipment sends at the described sub-frame of uplink of described the second radio frames;

Can be found out by the technical scheme that the invention described above embodiment provides, when the up-downgoing proportioning changes, when particularly up-downgoing proportioning changes comparatively frequently, can correctly carry out corresponding data dispatch, response message feedback and data re-transmission between subscriber equipment and the network equipment, thereby seamlessly transitting of supporting business better, and improve the service efficiency of system resource.

Description of drawings

In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite of not paying creative work, can also obtain other accompanying drawings according to these accompanying drawings.

The schematic flow sheet one of the data transmission method that Fig. 1 provides for one embodiment of the invention.

The schematic flow sheet two of the data transmission method that Figure 1A provides for another embodiment of the present invention.

The formation schematic diagram one of the data transmission device that Fig. 2 provides for one embodiment of the invention.

The formation schematic diagram two of the data transmission device that Fig. 2 A provides for another embodiment of the present invention.

Fig. 3 executes the schematic flow sheet three of the data transmission method that example provides for real another of the present invention.

The schematic flow sheet four of the data transmission method that Fig. 3 A provides for another embodiment of the present invention.

The formation schematic diagram three of the data transmission device that Fig. 4 provides for another embodiment of the present invention.

The formation schematic diagram four of the data transmission device that Fig. 4 A provides for another embodiment of the present invention.

The schematic flow sheet five of the data transmission method that Fig. 5 provides for another embodiment of the present invention.

The formation schematic diagram five of the data transmission device that Fig. 6 provides for another embodiment of the present invention.

The schematic flow sheet six of the data transmission method that Fig. 7 provides for another embodiment of the present invention.

The formation schematic diagram six of the data transmission device that Fig. 8 provides for another embodiment of the present invention.

The up-downgoing proportioning schematic diagram of radio frames in the data transmission method that Fig. 9 provides for one embodiment of the invention.

The up-downgoing proportioning schematic diagram of radio frames in the data transmission method that Figure 10 provides for one embodiment of the invention.

The up-downgoing proportioning schematic diagram of radio frames in the data transmission method that Figure 11 provides for one embodiment of the invention.

The up-downgoing proportioning schematic diagram of radio frames in the data transmission method that Figure 12 provides for one embodiment of the invention.

The up-downgoing proportioning schematic diagram of radio frames in the data transmission method that Figure 13 provides for one embodiment of the invention.

The up-downgoing proportioning schematic diagram of radio frames in the data transmission method that Figure 14 provides for one embodiment of the invention.

The up-downgoing proportioning schematic diagram of radio frames in the data transmission method that Figure 15 provides for one embodiment of the invention.

The up-downgoing proportioning schematic diagram of radio frames in the data transmission method that Figure 16 provides for one embodiment of the invention.

The up-downgoing proportioning schematic diagram of radio frames in the data transmission method that Figure 17 provides for one embodiment of the invention.

The up-downgoing proportioning schematic diagram of radio frames in the data transmission method that Figure 18 provides for one embodiment of the invention.

The up-downgoing proportioning schematic diagram of radio frames in the data transmission method that Figure 19 provides for one embodiment of the invention.

The up-downgoing proportioning schematic diagram of radio frames in the data transmission method that Figure 20 provides for one embodiment of the invention.

The up-downgoing proportioning schematic diagram of radio frames in the data transmission method that Figure 21 provides for one embodiment of the invention.

The up-downgoing proportioning schematic diagram of radio frames in the data transmission method that Figure 22 provides for one embodiment of the invention.

The up-downgoing proportioning schematic diagram of radio frames in the data transmission method that Figure 23 provides for one embodiment of the invention.

The up-downgoing proportioning schematic diagram of radio frames in the data transmission method that Figure 24 provides for one embodiment of the invention.

The up-downgoing proportioning schematic diagram of radio frames in the data transmission method that Figure 25 provides for one embodiment of the invention.

The up-downgoing proportioning schematic diagram of radio frames in the data transmission method that Figure 26 provides for one embodiment of the invention.

The up-downgoing proportioning schematic diagram of radio frames in the data transmission method that Figure 27 provides for one embodiment of the invention.

The up-downgoing proportioning schematic diagram of radio frames in the data transmission method that Figure 28 provides for one embodiment of the invention.

The up-downgoing proportioning schematic diagram of radio frames in the data transmission method that Figure 29 provides for one embodiment of the invention.

The up-downgoing proportioning schematic diagram of radio frames in the data transmission method that Figure 30 provides for one embodiment of the invention.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on embodiments of the invention, those of ordinary skills belong to protection scope of the present invention not making the every other embodiment that obtains under the creative work prerequisite.

In the prior art, usually the up-downgoing proportioning of radio frames remains unchanged, the sequential relationship of the first biography data by defining, feedback information, three operations of data retransmission, and data can smoothly transmission on radio frames.But, when the up-downgoing proportioning of radio frames changes, if still according to the sequential relationship of the first biography data that define, feedback information, three operations of data retransmission, can cause feedback information and data retransmission to transmit smoothly, affect the service efficiency of system resource.

In the data transmission method of the embodiment of the invention and the device, used term " just passes data ", " just passing the subframe of data " and " data retransmission ", " subframe of data retransmission " are done following understanding, if data send unsuccessfully and again transmission, " just pass data " and refer to this data re-transmission state before, data retransmission refers to the state in this data re-transmission.Subframe for these data of re-transmission is the subframe of data retransmission, sends the subframe of these data before retransmitting and is the subframe of first biography data.Be appreciated that each descending sub frame, sub-frame of uplink and special subframe both can be used for just passing data, also can be used for data retransmission.

Those skilled in the art should know, HARQ mixed automatic retransfer technology goes for LTE (Evolved Universal Terrestrial Radio Access, the terrestrial wireless access of the evolution whole world) agreement, and in other wireless communication protocol, therefore use the various communication systems of mixing retransmission technique can be suitable for data transmission method or the device of the embodiment of the invention.

As shown in Figure 1, the embodiment of the invention provides a kind of data transmission method, comprising:

Step 101, the descending sub frame or the special subframe that pass through in the first radio frames receive the downlink data that the base station sends.

Step 102, when the first timing according to described the first radio frames, when determining to use sub-frame of uplink in described the first radio frames to feed back the response message of described downlink data, then in the second radio frames, use and satisfy first sub-frame of uplink that time threshold requires with the time interval of the described descending sub frame of described the first radio frames or described special subframe and send described response message to described base station;

The executive agent of the data transmission method of the embodiment of the invention can be subscriber equipment.

Can be found out by the technical scheme that the invention described above embodiment provides, when the up-downgoing proportioning changes, when particularly up-downgoing proportioning changes comparatively frequently, can correctly carry out corresponding response message feedback between subscriber equipment and the network equipment, thereby seamlessly transitting of supporting business better, and improve the service efficiency of system resource.

Wherein, the described time interval is satisfied the time threshold requirement, comprising: described interval greater than or equal described time threshold.

Better, described time threshold is 4ms.

The data transmission method of the embodiment of the invention, when the first timing according to described the first radio frames, when determining to use sub-frame of uplink in described the first radio frames to feed back the response message of described downlink data, then in the described sub-frame of uplink of described the first radio frames, send described response message to described base station.

Optionally, described the first radio frames comprises a radio frames or two adjacent radio frames.

Optionally, described the second radio frames comprises a radio frames or two adjacent radio frames.

Optionally, the data transmission method of the embodiment of the invention can also comprise:

When using identical sub-frame of uplink to feed back the response message of downlink data of a plurality of descending sub frames and/or special subframe, determine the subframe set that described a plurality of descending sub frame and/or special subframe consist of;

Be retrieved as described subframe and gather the mapping label of the sub-frame allocation that comprises.

Wherein, the mapping label of the sub-frame allocation that comprises can be gathered for subframe in the base station, and subscriber equipment can just be retrieved as from the base station mapping label that subframe is gathered the sub-frame allocation that comprises.

Further, the data transmission method of the embodiment of the invention can also comprise:

Descending sub frame from described the first radio frames or special subframe receive the scheduling authorization order that described base station sends, and described scheduling authorization order is used for the dispatching downlink transfer of data;

The control channel unit CCE index that takies according to described scheduling authorization order and the mapping label of described descending sub frame or special subframe are retrieved as the up responder link resource index that described downlink data transmission is distributed;

Use channel resource corresponding to described up responder link resource index, send described response message to described base station.

As seen, considering at identical sub-frame of uplink has simultaneously feeding back uplink response message of a plurality of subscriber equipmenies, then needs to distribute respectively different up responder link resources for these a plurality of subscriber equipmenies.

Receive described base station and send the radio resource control RRC signaling, described RRC signaling is carried the temporal information that the up-downgoing proportioning changes is occured, and the up-downgoing proportioning information of described the second radio frames.

As seen, the base station can change the up-downgoing proportioning constantly by proprietary RRC signaling before the up-downgoing proportioning changes, and the up-downgoing proportioning notifying user equipment before and after changing.Can replace, also can pass through other method, as coming notifying user equipment by broadcast or physical layer signaling.

Thereby subscriber equipment can be clear and definite when to the up response message of base station feedback, thereby realize professional seamlessly transitting.

Can be found out by the technical scheme that the invention described above embodiment provides, when the up-downgoing proportioning changes, when particularly up-downgoing proportioning changes comparatively frequently, can correctly carry out corresponding data dispatch, response message feedback between subscriber equipment and the network equipment, thereby seamlessly transitting of supporting business better, and improve the service efficiency of system resource.

Shown in Figure 1A, the embodiment of the invention provides a kind of data transmission method, comprising:

Step 111, the descending sub frame or the special subframe that pass through in the first radio frames send downlink data to subscriber equipment.

Step 112, when the first timing according to described the first radio frames, when determining to use sub-frame of uplink in described the first radio frames to receive the response message of described downlink data, then in the second radio frames, by satisfying the response message that first sub-frame of uplink that time threshold requires receives the described downlink data that described subscriber equipment sends with the time interval of the described descending sub frame of described the first radio frames or described special subframe;

The executive agent of the data transmission method of the embodiment of the invention can be the network equipment, such as the base station.

Better, described time threshold is 4ms.

The data transmission method of the embodiment of the invention, when the first timing according to described the first radio frames, when determining to use sub-frame of uplink in described the first radio frames to receive the response message of described downlink data, the described sub-frame of uplink by described the first radio frames receives the described response message that described subscriber equipment sends.

When identical sub-frame of uplink feeds back the response message of downlink data of a plurality of descending sub frames and/or special subframe, determine the subframe set that described a plurality of descending sub frame and/or special subframe consist of;

For the sub-frame allocation that described subframe set comprises is shone upon label.

The data transmission method of the embodiment of the invention can also comprise:

Receive the order of transmission scheduling authorization to described subscriber equipment by the descending sub frame in described the first radio frames or special subframe, described scheduling authorization order is used for the dispatching downlink transfer of data;

According to channel resource corresponding to described up responder link resource index, obtain the response message that described subscriber equipment sends.

Send the radio resource control RRC signaling to subscriber equipment, described RRC signaling is carried the temporal information that the up-downgoing proportioning changes is occured, and the up-downgoing proportioning information of described the second radio frames.

As seen, the base station can change the up-downgoing proportioning constantly by proprietary RRC signaling before the up-downgoing proportioning changes, and the up-downgoing proportioning notifying user equipment before and after changing.Can replace, also can pass through other method, as coming notifying user equipment by broadcast or physical layer signaling.Thereby subscriber equipment can be clear and definite when to the up response message of base station feedback, thereby realize professional seamlessly transitting.

As shown in Figure 2, data transmission method corresponding shown in Figure 1, the embodiment of the invention provides a kind of data transmission device, comprising:

Receiving element 201 is used for receiving the downlink data that the base station sends by descending sub frame or the special subframe of the first radio frames.

Whether processing unit 202 be used for is determined the first timing according to described the first radio frames, can use sub-frame of uplink in described the first radio frames to feed back the response message of described downlink data.

Transmitting element 203, be used for when the first timing according to described the first radio frames, when determining to use sub-frame of uplink in described the first radio frames to feed back the response message of described downlink data, then in the second radio frames, use and satisfy first sub-frame of uplink that time threshold requires with the time interval of the described descending sub frame of described the first radio frames or described special subframe and send described response message to described base station;

The data transmission device of the embodiment of the invention can arrange separately, perhaps is arranged at one with subscriber equipment.

The described time interval is satisfied the time threshold requirement, comprising: described interval greater than or equal described time threshold.Described time threshold is 4ms.

Optionally, transmitting element 203, also be used for when the first timing according to described the first radio frames, when determining to use sub-frame of uplink in described the first radio frames to feed back the response message of described downlink data, then in the described sub-frame of uplink of described the first radio frames, send described response message to described base station.

Optionally, described the first radio frames comprises one or two adjacent radio frames.

Optionally, described the second radio frames comprises one or two adjacent radio frames.

The data transmission device of the embodiment of the invention can also comprise:

Determining unit is used for when using identical sub-frame of uplink to feed back the response message of downlink data of a plurality of descending sub frames and/or special subframe, determines that the subframe that described a plurality of descending sub frame and/or special subframe consist of gathers.

Acquiring unit is used for being retrieved as the mapping label that described subframe is gathered the sub-frame allocation that comprises.

Optionally, receiving element 201 can also be used for receiving the scheduling authorization order that described base station sends from descending sub frame or the special subframe of described the first radio frames, and described scheduling authorization order is used for the dispatching downlink transfer of data.

Transmitting element 203, can also be for the control channel unit CCE index that takies according to described scheduling authorization order and the mapping label of described descending sub frame or special subframe, be retrieved as the up responder link resource index that described downlink data transmission is distributed, use channel resource corresponding to described up responder link resource index, send described response message to described base station.

Optionally, receiving element 201 can also be used for receiving described base station and send the radio resource control RRC signaling, and described RRC signaling is carried the temporal information that the up-downgoing proportioning changes is occured, and the up-downgoing proportioning information of described the second radio frames.

The data transmission device of the embodiment of the invention is used for realizing data transmission method corresponding to Fig. 1, and the data transmission device of the embodiment of the invention and formation thereof can correspondence be understood with reference to the action of the data transmission method execution of figure 1 correspondence, do not repeat them here.

Corresponding, shown in Fig. 2 A, the data transmission method shown in corresponding Figure 1A, the embodiment of the invention provides a kind of data transmission device, comprising:

Transmitting element 211 is used for sending downlink data to subscriber equipment by descending sub frame or the special subframe of the first radio frames.

Whether processing unit 212 be used for is determined the first timing according to described the first radio frames, can use sub-frame of uplink in described the first radio frames to receive the response message of described downlink data.

Receiving element 213, be used for when the first timing according to described the first radio frames, when determining to use sub-frame of uplink in described the first radio frames to receive the response message of described downlink data, then in the second radio frames, by satisfying the response message that first sub-frame of uplink that time threshold requires receives the described downlink data that described subscriber equipment sends with the time interval of the described descending sub frame of described the first radio frames or described special subframe;

The data transmission device of the embodiment of the invention can arrange separately, perhaps with the network equipment, is arranged at one such as the base station.

Better, described time threshold is 4ms.

The data transmission device of the embodiment of the invention, receiving element 212, can also be used for, when the first timing according to described the first radio frames, when determining to use sub-frame of uplink in described the first radio frames to receive the response message of described downlink data, the described sub-frame of uplink by described the first radio frames receives the described response message that described subscriber equipment sends.

Determining unit is used for when identical sub-frame of uplink feeds back the response message of downlink data of a plurality of descending sub frames and/or special subframe, determines that the subframe that described a plurality of descending sub frame and/or special subframe consist of gathers.

Allocation units, the sub-frame allocation mapping label that is used to described subframe set to comprise.

The data transmission device of the embodiment of the invention, transmitting element 211, can also be used for sending the scheduling authorization order to described subscriber equipment by descending sub frame or the special subframe of described the first radio frames, described scheduling authorization order is used for the dispatching downlink transfer of data;

Receiving element 213, can also be for the control channel unit CCE index that takies according to described scheduling authorization order and the mapping label of described descending sub frame or special subframe, be retrieved as the up responder link resource index that described downlink data transmission is distributed, according to channel resource corresponding to described up responder link resource index, obtain the response message that described subscriber equipment sends.

The data transmission device of the embodiment of the invention, transmitting element 211, can also be used for sending the radio resource control RRC signaling to subscriber equipment, described RRC signaling is carried the temporal information that the up-downgoing proportioning changes is occured, and the up-downgoing proportioning information of described the second radio frames.

The data transmission device of the embodiment of the invention is used for realizing data transmission method corresponding to Figure 1A, the data transmission device of the embodiment of the invention and consist of can be corresponding be understood with reference to the action of carrying out in data transmission method corresponding to Figure 1A, does not repeat them here.

As shown in Figure 3, the embodiment of the invention provides a kind of data transmission method, comprising:

Step 301, the sub-frame of uplink that passes through in the first radio frames receive the upstream data that subscriber equipment sends.

Step 302, when the second timing according to described the first radio frames, when determining to use the response message that descending sub frame in described the first radio frames or special subframe feed back described upstream data, then in the second radio frames, use and satisfy descending sub frame or the special subframe that time threshold requires with the time interval of the described sub-frame of uplink of described the first radio frames and send described response message to described subscriber equipment;

Optionally, described time threshold is 4ms.

Optionally, the data transmission method of the embodiment of the invention, when the second timing according to described the first radio frames, when determining to use the response message that descending sub frame in described the first radio frames or special subframe feed back described upstream data, the response message that then sends described upstream data at described descending sub frame or the described special subframe of described the first radio frames is to described subscriber equipment.

Optionally, the data transmission method of the embodiment of the invention, in described the second radio frames, use and to satisfy descending sub frame or the special subframe that time threshold requires with the time interval of the described sub-frame of uplink of described the first radio frames and send described response message to described subscriber equipment, can comprise:

Be changed to the process of up-downgoing proportioning of described the second radio frames in the up-downgoing proportioning from described the first radio frames, when the sub-frame of uplink correspondence that only has the first radio frames is changed to the descending sub frame of the second radio frames, the time interval of the described sub-frame of uplink of described and described the first radio frames is satisfied descending sub frame or the special subframe that time threshold requires, and is descending sub frame or the special subframe of determining according to the second timing of described the first radio frames;

Perhaps, be changed to the process of up-downgoing proportioning of described the second radio frames in the up-downgoing proportioning from described the first radio frames, when at least one the descending sub frame correspondence that has the first radio frames is changed to the sub-frame of uplink of the second radio frames, the time interval of the described sub-frame of uplink of described and described the first radio frames is satisfied descending sub frame or the special subframe that time threshold requires, for satisfying first descending sub frame or the special subframe that time threshold requires with the time interval of the described sub-frame of uplink of described the first radio frames.

When the response message of described upstream data is NACK, receive the described upstream data that described subscriber equipment resends from satisfying first sub-frame of uplink that time threshold requires with the time interval of the described descending sub frame of the response message of the described upstream data of described feedback or described special subframe.

According to described transmission upstream data and the time relationship that resends described upstream data, merge the upstream data of the described subscriber equipment transmission of receiving and the described upstream data that described subscriber equipment resends.

As shown in Figure 3A, the embodiment of the invention provides a kind of data transmission method, comprising:

Step 311, the sub-frame of uplink that passes through in the first radio frames send upstream data to the base station.

Step 312, when the second timing according to described the first radio frames, when determining to use the response message that descending sub frame in described the first radio frames or special subframe receive described upstream data, then in the second radio frames, by satisfying the response message that descending sub frame that time threshold requires or special subframe receive the described upstream data that the base station sends with the time interval of the described sub-frame of uplink of described the first radio frames;

Wherein, described the second timing is the descending sub frame of the sub-frame of uplink of up-downgoing proportioning, transmit ascending data according to described the first radio frames and the response message that receives described upstream data or the time interval between the special subframe, and the consecutive frame that described the second radio frames is described the first radio frames and the up-downgoing proportioning of described the second radio frames are different from the up-downgoing proportioning of described the first radio frames.

Optionally, described time threshold is 4ms.

When the second timing according to described the first radio frames, when determining to use the response message that descending sub frame in described the first radio frames or special subframe receive described upstream data, then receive the response message of the described upstream data that the base station sends at the described descending sub frame of described the first radio frames or described special subframe.

Optionally, the data transmission method of the embodiment of the invention, in described the second radio frames, by satisfying the response message that descending sub frame that time threshold requires or special subframe receive the described upstream data that the base station sends with the time interval of the described sub-frame of uplink of described the first radio frames, can comprise:

When the response message of described upstream data is NACK, resend described upstream data to the base station by satisfying first sub-frame of uplink that time threshold requires with the time interval of the described descending sub frame of the response message of the described upstream data of described feedback or described special subframe.

As shown in Figure 4, corresponding to data transmission method shown in Figure 3, the embodiment of the invention provides a kind of data transmission device, comprising:

Receiving element 401 is used for receiving the upstream data that subscriber equipment sends by the sub-frame of uplink of the first radio frames.

Processing unit 402 be used for to be determined the second timing according to described the first radio frames, the response message that whether can use descending sub frame in described the first radio frames or special subframe to feed back described upstream data.

Transmitting element 403, be used for when the second timing according to described the first radio frames, when determining to use the response message that descending sub frame in described the first radio frames or special subframe feed back described upstream data, then in the second radio frames, use and satisfy descending sub frame or the special subframe that time threshold requires with the time interval of the described sub-frame of uplink of described the first radio frames and send described response message to described subscriber equipment;

Optionally, described time threshold is 4ms.

Optionally, transmitting element 403, can also be used for when the second timing according to described the first radio frames, when determining to use the response message that descending sub frame in described the first radio frames or special subframe feed back described upstream data, the response message that then sends described upstream data at described descending sub frame or the described special subframe of described the first radio frames is to described subscriber equipment.

Optionally, transmitting element 403, can also specifically be used for being changed in the up-downgoing proportioning from described the first radio frames the process of the up-downgoing proportioning of described the second radio frames, when the sub-frame of uplink correspondence that only has the first radio frames is changed to the descending sub frame of the second radio frames, the time interval of the described sub-frame of uplink of described and described the first radio frames is satisfied descending sub frame or the special subframe that time threshold requires, and is descending sub frame or the special subframe of determining according to the second timing of described the first radio frames.

Perhaps, transmitting element 403, can also specifically be used for being changed in the up-downgoing proportioning from described the first radio frames the process of the up-downgoing proportioning of described the second radio frames, when at least one the descending sub frame correspondence that has the first radio frames is changed to the sub-frame of uplink of the second radio frames, the time interval of the described sub-frame of uplink of described and described the first radio frames is satisfied descending sub frame or the special subframe that time threshold requires, for satisfying first descending sub frame or the special subframe that time threshold requires with the time interval of the described sub-frame of uplink of described the first radio frames.

Optionally, receiving element 401, can also be used for when the response message of described upstream data is NACK, from satisfying the described upstream data that the described subscriber equipment of reception resends first sub-frame of uplink that time threshold requires with the time interval of the described descending sub frame of the response message of the described upstream data of described feedback or described special subframe.

Optionally, the data transmission device of the embodiment of the invention can also comprise:

Merge cells is used for according to described transmission upstream data and the time relationship that resends described upstream data, merges the upstream data of the described subscriber equipment transmission of receiving and the described upstream data that described subscriber equipment resends.

The data transmission device of the embodiment of the invention be used for to be realized data transmission method corresponding to Fig. 3, and the data transmission device of the embodiment of the invention and consist of the action of carrying out in can corresponding data transmission method with reference to figure 3 correspondences and understood does not repeat them here.

Shown in Fig. 4 A, corresponding to the data transmission method shown in Fig. 3 A, the embodiment of the invention provides a kind of data transmission device, comprising:

Transmitting element 411 is used for sending upstream data to the base station by the sub-frame of uplink of the first radio frames.

Processing unit 212 be used for to be determined the second timing according to described the first radio frames, the response message that whether can use descending sub frame in described the first radio frames or special subframe to receive described upstream data.

Receiving element 413, be used for when the second timing according to described the first radio frames, when determining to use the response message that descending sub frame in described the first radio frames or special subframe receive described upstream data, then in the second radio frames, by satisfying the response message that descending sub frame that time threshold requires or special subframe receive the described upstream data that the base station sends with the time interval of the described sub-frame of uplink of described the first radio frames;

Optionally, described time threshold is 4ms.

Optionally, the data transmission device of the embodiment of the invention, receiving element 412, can also be used for, when the second timing according to described the first radio frames, when determining to use the response message that descending sub frame in described the first radio frames or special subframe receive described upstream data, then receive the response message of the described upstream data that the base station sends at the described descending sub frame of described the first radio frames or described special subframe.

Optionally, the data transmission device of the embodiment of the invention, receiving element 412, can also be used for being changed in the up-downgoing proportioning from described the first radio frames the process of the up-downgoing proportioning of described the second radio frames, when the sub-frame of uplink correspondence that only has the first radio frames is changed to the descending sub frame of the second radio frames, the time interval of the described sub-frame of uplink of described and described the first radio frames is satisfied descending sub frame or the special subframe that time threshold requires, and is descending sub frame or the special subframe of determining according to the second timing of described the first radio frames.

Perhaps, receiving element 412, can also be used for being changed in the up-downgoing proportioning from described the first radio frames the process of the up-downgoing proportioning of described the second radio frames, when at least one the descending sub frame correspondence that has the first radio frames is changed to the sub-frame of uplink of the second radio frames, the time interval of the described sub-frame of uplink of described and described the first radio frames is satisfied descending sub frame or the special subframe that time threshold requires, for satisfying first descending sub frame or the special subframe that time threshold requires with the time interval of the described sub-frame of uplink of described the first radio frames.

Optionally, the data transmission device of the embodiment of the invention, transmitting element 4114, can also be used for when the response message of described upstream data is NACK, resend described upstream data to the base station by satisfying first sub-frame of uplink that time threshold requires with the time interval of the described descending sub frame of the response message of the described upstream data of described feedback or described special subframe.

The data transmission device of the embodiment of the invention is used for realizing data transmission method corresponding to Fig. 3 A, the data transmission device of the embodiment of the invention and consist of can be corresponding be understood with reference to the action of carrying out in data transmission method corresponding to figure 3A, does not repeat them here.

As shown in Figure 5, the embodiment of the invention provides a kind of data transmission method, comprising:

501, according to the 3rd timing of the second radio frames, determine that the scheduling authorization order that can't receive by descending sub frame or the special subframe of described the second radio frames dispatches the upstream data in the sub-frame of uplink of described the second radio frames, then in the first radio frames, receive the scheduling authorization order that the base station sends from satisfying nearest descending sub frame that time threshold requires or the special subframe with the time interval of the sub-frame of uplink of the second radio frames.

502, when successfully receiving the scheduling authorization order, send the upstream data of described scheduling authorization command scheduling to the base station at the described sub-frame of uplink of described the second radio frames;

Can be found out by the technical scheme that the invention described above embodiment provides, when the up-downgoing proportioning changes, when particularly up-downgoing proportioning changes comparatively frequently, can correctly carry out corresponding data dispatch between subscriber equipment and the network equipment, thereby seamlessly transitting of supporting business better, and improve the service efficiency of system resource.

Optionally, described time threshold is 4ms.

Optionally, the data transmission method of the embodiment of the invention, when the 3rd timing according to described the second radio frames, determine that the scheduling authorization order that can receive by descending sub frame or the special subframe of described the second radio frames dispatches the upstream data in the sub-frame of uplink of described the second radio frames, then in described descending sub frame or the described special subframe receiving scheduling authorization command of described the second radio frames, send described upstream data at the described sub-frame of uplink of described the second radio frames.

As shown in Figure 6, the embodiment of the invention provides a kind of data transmission device, comprising:

Processing unit 601 be used for to be determined the 3rd timing according to the second radio frames, and the upstream data in the sub-frame of uplink of described the second radio frames is dispatched in the scheduling authorization order that whether can receive by descending sub frame or the special subframe of described the second radio frames.

Receiving element 602, be used for the 3rd timing according to the second radio frames, determine that the scheduling authorization order that can't receive by descending sub frame or the special subframe of described the second radio frames dispatches the upstream data in the sub-frame of uplink of described the second radio frames, then in the first radio frames, receive the scheduling authorization order that the base station sends from satisfying nearest descending sub frame that time threshold requires or the special subframe with the time interval of the sub-frame of uplink of the second radio frames.

Transmitting element 603 is used for when successfully receiving the scheduling authorization order, sends the upstream data of described scheduling authorization command scheduling to the base station at the described sub-frame of uplink of described the second radio frames;

Optionally, described time threshold is 4ms.

Optionally, receiving element 602, can also be used for when the 3rd timing according to described the second radio frames, determine that the scheduling authorization order that can receive by descending sub frame or the special subframe of described the second radio frames dispatches the upstream data in the sub-frame of uplink of described the second radio frames, then in described descending sub frame or the described special subframe receiving scheduling authorization command of described the second radio frames.

The data transmission device of the embodiment of the invention be used for to be realized data transmission method corresponding to Fig. 5, and the data transmission device of the embodiment of the invention and consist of the action of carrying out in can corresponding data transmission method with reference to figure 5 correspondences and understood does not repeat them here.

As shown in Figure 7, the embodiment of the invention provides a kind of data transmission method, comprising:

701, according to the 3rd timing of the second radio frames, determine that the scheduling authorization order that can't send by descending sub frame or the special subframe of described the second radio frames dispatches the upstream data in the sub-frame of uplink of described the second radio frames, then in the first radio frames, use and satisfy nearest descending sub frame or the special subframe that time threshold requires with the time interval of the sub-frame of uplink of described the second radio frames and send described scheduling authorization order to described subscriber equipment.

702, the described sub-frame of uplink in described the second radio frames receives the described upstream data that described subscriber equipment sends;

The base station need to be in the transmitting uplink data of the uplink subframe scheduling subscriber equipment of the second radio frames.

Optionally, described time threshold is 4ms.

Optionally, the data transmission method of the embodiment of the invention, when the 3rd timing according to described the second radio frames, determine that the scheduling authorization order that can send by descending sub frame or the special subframe of described the second radio frames dispatches the upstream data in the sub-frame of uplink of described the second radio frames, then send the scheduling authorization order at the described descending sub frame of described the second radio frames or described special subframe, receive described upstream data at the described sub-frame of uplink of described the second radio frames.

As shown in Figure 8, corresponding, the embodiment of the invention provides a kind of data transmission device, comprising:

Processing unit 801 be used for to be determined the 3rd timing according to the second radio frames, and the upstream data in the sub-frame of uplink of described the second radio frames is dispatched in the scheduling authorization order that whether can send by descending sub frame or the special subframe of described the second radio frames.

Transmitting element 802, be used for the 3rd timing according to described the second radio frames, determine that the scheduling authorization order that can't send by descending sub frame or the special subframe of described the second radio frames dispatches the described upstream data in the sub-frame of uplink of described the second radio frames, then in the first radio frames, use and satisfy nearest descending sub frame or the special subframe that time threshold requires with the time interval of the sub-frame of uplink of described the second radio frames and send described scheduling authorization order to described subscriber equipment.

Receiving element 803 is used for receiving the described upstream data that described subscriber equipment sends at the described sub-frame of uplink of described the second radio frames;

Optionally, described time threshold is 4ms.

Optionally, transmitting element 801, can also be used for when the 3rd timing according to described the second radio frames, determine that the scheduling authorization order that can send by descending sub frame or the special subframe of described the second radio frames dispatches the described upstream data in the sub-frame of uplink of described the second radio frames, then described descending sub frame or the described special subframe in described the second radio frames sends the scheduling authorization order.

The data transmission device of the embodiment of the invention be used for to be realized data transmission method corresponding to Fig. 7, and the data transmission device of the embodiment of the invention and consist of the action of carrying out in can corresponding data transmission method with reference to figure 7 correspondences and understood does not repeat them here.

The below illustrates the data transmission method of the embodiment of the invention, wherein with the specific embodiment of the TDD system of LTE, time threshold is 4ms, and dotted line represents that the up-downgoing proportioning changes constantly in the accompanying drawing of institute's reference, and the dotted line left side is the first radio frames, the dotted line right side is the second radio frames, hereinafter repeats no more.

Embodiment one

The embodiment of the invention provides a kind of data transmission method, is applicable to subscriber equipment.Concrete, subscriber equipment receives the downlink data that the network equipment (such as the base station) sends, judge whether correct reception, and generate corresponding up response message, up response message comprises ACK (Acknowledgment, affirmative acknowledgement) or NACK (Negative Acknowledgment, negative response), subscriber equipment sends up response message to the base station.

In the data transmission method that the embodiment of the invention provides, the up-downgoing proportioning changes, subscriber equipment need to know in advance that the up-downgoing proportioning changes constantly, and the up-downgoing proportioning before and after changing, optionally, the network equipment can pass through proprietary RRC (Radio Resource Control, Radio Resource control) signaling is before the up-downgoing proportioning changes, the up-downgoing proportioning is changed constantly, and the up-downgoing proportioning notifying user equipment before and after changing, certainly, also can pass through other method, as coming notifying user equipment by broadcast or physical layer signaling.Thereby subscriber equipment can be clear and definite when to network equipment feeding back uplink response message, thereby realize professional seamlessly transitting.

In the data transmission method that the embodiment of the invention provides, change for the up-downgoing proportioning, defined downlink data transmission to the timing relationship between the up response message feedback: the sub-frame of uplink that sends up response message for and the subframe of downlink data transmission between satisfy first sub-frame of uplink of time threshold, as seen, in time threshold, subscriber equipment is wanted to finish at least the reception of downlink data, also whether is generated corresponding up response message according to correct reception.Usually, subscriber equipment is finished the downlink data reception and generated the needed time of up response message, and is relevant with the disposal ability of device.For the TDD system of LTE, after considering the device disposal ability, described time threshold is set to 4ms, i.e. 4 subframes.

The below describes in the data transmission method of the embodiment of the invention downlink data transmission in detail in two kinds of situation to the timing relationship between the up response message feedback.

(1) the first situation:

Exemplary, as shown in Figure 9, the up-downgoing proportioning of the first radio frames be the up-downgoing proportioning of 1, the second radio frames be 2, the first radio frames to the second radio frames, the up-downgoing proportioning changes.The up-downgoing proportioning is as shown in table 1 below:

Table 1 illustrates the up-downgoing proportioning that the TDD system of LTE supports:

Table 2 illustrates the time interval between the sub-frame of uplink of response message of the descending sub frame of the defined transmitting downlink data of up-downgoing proportioning or special subframe and the described downlink data of feedback:

Wherein, the subframe of subframe index indication is for being used for the sub-frame of uplink of feeding back uplink response message, the resulting numeral of the common indication of subframe index and up-downgoing proportioning, each numeral is corresponding descending sub frame or the special subframe of a transmitting downlink data, concrete, corresponding descending sub frame or special subframe are from the sub-frame of uplink of feeding back uplink response message, count that subframe that obtains after the subframe of the corresponding number of value that provides with numeral forward.As take up-downgoing proportioning 2 as example, subframe 2 corresponding 4 numerals 8,7,4,6}, then from subframe 2 several 8,7,4,6 subframes respectively forward, corresponding descending sub frame is respectively subframe 4, subframe 5, subframe 8 and subframe 6.

As shown in Figure 9, because the up-downgoing proportioning according to the first radio frames is 1 o'clock, the downlink data transmission of the up-downgoing proportioning definition of the first radio frames is to the timing relationship (referring to table 2) between the up response message feedback, occur in the downlink data transmission of subframe 5, subframe 6 and subframe 9 in the first radio frames, up response message can't feed back in the first radio frames.Therefore, the data transmission method that the embodiment of the invention provides, downlink data transmission for subframe 5, subframe 6 and subframe 9 in the first radio frames, subscriber equipment feeds back corresponding up response message in subframe 2, subframe 2 and the subframe 7 of the second radio frames respectively, namely, subscriber equipment use with the first radio frames in satisfy time threshold (4ms) requirement between subframe 5, subframe 6 and the subframe 9 first sub-frame of uplink send up response message.

Simultaneously, as shown in Figure 9, because the up-downgoing proportioning according to the first radio frames is 1 o'clock, according to the downlink data transmission of the up-downgoing proportioning of the first radio frames in prior art definition to the timing relationship (referring to table 2) between the up response message feedback, for occurring in subframe 0 in the first radio frames, downlink data transmission in subframe 1 and the subframe 4, up response message can feed back in the first radio frames, as can be at the subframe 7 of the first radio frames and up response message corresponding to subframe 8 feedbacks, then subscriber equipment be respectively in the subframe 7 of the first radio frames, subframe 7 and up response message corresponding to subframe 8 feedbacks.

Simultaneously, for the downlink data transmission that occurs in the second radio frames, if the radio frames of the second radio frames back does not have the up-downgoing proportioning of change, can come at corresponding sub-frame of uplink feeding back uplink response message according to the timing relationship that is the up-downgoing proportioning definition of the second radio frames so; If the radio frames of the second radio frames back has changed the up-downgoing proportioning, can come at corresponding sub-frame of uplink feeding back uplink response message according to the data transmission method that the embodiment of the invention provides so.

Exemplary, as shown in figure 10, the up-downgoing proportioning of the first radio frames be the up-downgoing proportioning of 2, the second radio frames be 1, the first radio frames to the second radio frames, the up-downgoing proportioning changes.Because the up-downgoing proportioning according to the first radio frames is 2 o'clock, according to the downlink data transmission of the first radio frames definition in the prior art to the timing relationship between the up response message feedback, occur in the downlink data transmission of subframe 4, subframe 5, subframe 6, subframe 8 and subframe 9 in the first radio frames, up response message can't feed back in the first radio frames.Therefore, the data transmission method that the embodiment of the invention provides, downlink data transmission for subframe 4 in the first radio frames, subframe 5, subframe 6, subframe 8 and subframe 9, subscriber equipment feeds back corresponding up response message in subframe 2, subframe 2, subframe 2, subframe 2 and the subframe 3 of the second radio frames respectively, namely, subscriber equipment use with the first radio frames in subframe 4, subframe 5 and subframe 6, subframe 8 and subframe 9 between satisfy time threshold (4ms) requirement first sub-frame of uplink send up response message.

Simultaneously, as shown in figure 10, because the up-downgoing proportioning according to the first radio frames is 2 o'clock, according to the downlink data transmission of the up-downgoing proportioning of the first radio frames in prior art definition to the timing relationship between the up response message feedback, for the downlink data transmission that occurs in subframe 0 in the first radio frames, subframe 1 and the subframe 3, up response message can feed back in the first radio frames, as feeding back corresponding up response message in the subframe 7 of the first radio frames, then subscriber equipment feeds back corresponding up response message in the subframe 7 of the first radio frames respectively.

(2) the second situation:

As shown in Figure 9 and Figure 10, the first radio frames and the second radio frames have all only comprised a radio frames, and such as Figure 11 and shown in Figure 12, the first radio frames and the second radio frames also can comprise greater than a radio frames.

Exemplary, as shown in figure 11, the up-downgoing proportioning of the first radio frames is that 5, the first radio frames have comprised two radio frames, the up-downgoing proportioning of the second radio frames be 2, the first radio frames to the second radio frames, the up-downgoing proportioning changes.

Because the up-downgoing proportioning according to the first radio frames is 5 o'clock, according to the downlink data transmission of the up-downgoing proportioning of the first radio frames in prior art definition to the timing relationship between the up response message feedback, occur in the downlink data transmission of subframe 8 in first radio frames that the first radio frames comprises, can be in second radio frames that the first radio frames comprises subframe 2 feeding back uplink response messages.Occur in the downlink data transmission of subframe 0, subframe 1, subframe 3-subframe 8 and subframe 9 in second radio frames that subframe 9, the first radio frames comprise in first radio frames that the first radio frames comprises, up response message can't feed back in the first radio frames.Therefore, the data transmission method that the embodiment of the invention provides, for the downlink data transmission of subframe 0, subframe 1, subframe 3-subframe 8 and subframe 9 in second radio frames that comprises in the first radio frames, subscriber equipment feeds back corresponding up response message in subframe 2, subframe 2, subframe 2, subframe 2, subframe 2, subframe 2, subframe 2, subframe 2, subframe 2 and the subframe 8 of the second radio frames respectively.

Exemplary, as shown in figure 12, the up-downgoing proportioning of the first radio frames is that the up-downgoing proportioning of 2, the second radio frames is that 5, the second radio frames have comprised two radio frames, and the first radio frames is to the second radio frames, and the up-downgoing proportioning changes.

Because the up-downgoing proportioning according to the first radio frames is 2 o'clock, according to the downlink data transmission of the up-downgoing proportioning of the first radio frames in prior art definition to the timing relationship between the up response message feedback, occur in the downlink data transmission of subframe 0 in the first radio frames, subframe 1 and subframe 3, can be in the first radio frames subframe 7 feeding back uplink response messages.Occur in the downlink data transmission of subframe 4, subframe 5, subframe 6, subframe 8 and subframe 9 in the first radio frames, up response message can't feed back in the first radio frames.Therefore, the data transmission method that the embodiment of the invention provides, for the downlink data transmission in subframe 4 in the first radio frames, subframe 5, subframe 6, subframe 8 and subframe 9, the up response message corresponding to subframe 2 feedbacks of second radio frames that subframe 2, subframe 2, subframe 2, subframe 2 and second radio frames of first radio frames that subscriber equipment comprises in the second radio frames respectively comprises.

In the data transmission method that the embodiment of the invention provides, for other up-downgoing proportioning shown in the table 1 and other up-downgoing proportioning of not illustrating, data transmission method of the present invention can be suitable for.

In the data transmission method that the embodiment of the invention provides, for the transfer of data that occurs in descending sub frame A, if the up response message of its correspondence sends at sub-frame of uplink B, claim that so descending sub frame A is the related descending sub frame of sub-frame of uplink B.All related descending sub frames related with sub-frame of uplink B have consisted of a descending related subframe set.

In the TDD system of LTE, as shown in table 2, provided and be the time interval between the sub-frame of uplink of the response message of the descending sub frame of every kind of defined transmitting downlink data of up-downgoing proportioning or special subframe and the described downlink data of feedback, it is the first timing relationship in the embodiment of the invention, particularly, numeral has provided the number of sub-frames at interval.This table 2 can be pre-stored in base station and subscriber equipment.

As shown in table 2, take up-downgoing proportioning 2 as example, corresponding 4 numerals of subframe 28,7,4,6}, these 4 related descending sub frames corresponding to numeral are respectively subframe 4, subframe 5, subframe 8 and subframe 6, i.e. the related descending sub frame set of subframe 2 correspondences is { subframe 4, subframe 5, subframe 8 and subframe 6}.

For the timing relationship that provides among all embodiment provided by the invention, can define according to the form shown in the similar table 2, and can be pre-stored in base station and subscriber equipment.

In the data transmission method that the embodiment of the invention provides, for the sub-frame of uplink in the second radio frames, its related descending sub frame number and the set of related descending sub frame are determined to the timing relationship the up response message feedback by the downlink data transmission of embodiment of the invention definition.

Exemplary, as shown in Figure 9, for the subframe 2 in the second radio frames, according to the downlink data transmission of embodiment of the invention definition to the timing relationship between the up response message feedback, 2 of the subframes of the second radio frames need the up response messages of 2 descending sub frames of feedback, and the related descending sub frame set related with the second radio frames subframe 2 comprises the first radio frames subframe 5 and the first radio frames subframe 6.

Exemplary, still as shown in Figure 9, for the subframe 7 in the second radio frames, not only need to feed back the second radio frames subframe 0, the up response message of the second radio frames subframe 1 and the second radio frames subframe 3, and, according to the downlink data transmission of embodiment of the invention definition to the timing relationship between the up response message feedback, the subframe 7 of the second radio frames also needs to feed back the up response message of the first radio frames subframe 9, as seen, the related descending sub frame set related with the subframe 7 in the second radio frames comprises the first radio frames subframe 9, the second radio frames subframe 0, the second radio frames subframe 1 and the second radio frames subframe 3.

Before transfer of data, the network equipment sends first the scheduling authorization order to subscriber equipment, has comprised descending distribution indication field in the scheduling authorization order, is used for to the number of subscriber equipment indicating downlink scheduling.In the TDD of LTE system, descending distribution indication field arranges in each related descending sub frame set, particularly, descending distribution indication field indication is till current subframe, to the scheduling authorization order number that is used for the dispatching downlink transfer of data of subscriber equipment transmission.

Take Fig. 9 as example, in the first radio frames, subframe 5 is gathered with the related descending sub frame that subframe 6 has formed the second radio frames subframe 2, and descending distribution indication field arranges by existing rule in these two subframes.For example, when when the subframe 5 of the first radio frames and subframe 6 have sent respectively the scheduling authorization order of dispatching downlink transfer of data, can in the scheduling authorization order that subframe 5 and subframe 6 send descending distribution indication field value be set respectively is 1 and 2.

In the data transmission method that the embodiment of the invention provides, for the downlink data transmission that occurs in the first radio frames and the second radio frames, the downlink data transmission that provides by the embodiment of the invention can be obtained the sub-frame of uplink of feeding back uplink response message to the timing relationship between the up response message feedback.Considering at identical sub-frame of uplink has simultaneously feeding back uplink response message of a plurality of subscriber equipmenies, need to distribute respectively different up responder link resources for these a plurality of subscriber equipmenies.

In the TDD of LTE system, be each descending sub frame of sub-frame of uplink association, distributed a mapping label m, particularly, each related descending sub frame is determined by the ordering of numeral in table 2 of its correspondence.Take up-downgoing proportioning 2 as example, the related descending sub frame set of subframe 2 correspondences is { subframe 4, subframe 5, subframe 8 and subframe 6}, when in subframe 2, obtaining up responder link resource so, for subframe 4, subframe 5, subframe 8 and subframe 6 have been distributed respectively mapping label m=0, m=1, m=2 and m=3.For the downlink data that sends at related descending sub frame A, the base station also can send the scheduling authorization order to subscriber equipment at related descending sub frame A, subscriber equipment elder generation receiving scheduling authorization command, again downlink data receiving.The control channel unit that order takies according to scheduling authorization (Control Channel Element, CCE) index n _CCEWith the mapping label m that is descending related subframe A distribution, subscriber equipment and base station can be calculated and be obtained up responder link resource index

Detailed process is as follows: at first from { selecting a p value among 0,1,2, the 3}, so that N _p≤ n _CCE＜N _P+1Through type

Can calculate the responder link resource index that obtains distribution, wherein

Be the downlink system bandwidth, M is the number of the related descending sub frame of sub-frame of uplink B, A deviant for network equipment broadcast announcement.At sub-frame of uplink B, subscriber equipment uses and calculates the up responder link resource feeding back uplink response message that obtains, and the base station is used and calculated the up response message that the up responder link resource that obtains receives the subscriber equipment feedback.

In the data transmission method that the embodiment of the invention provides, for the sub-frame of uplink in the second radio frames, its related descending sub frame number and the set of related descending sub frame are determined to the timing relationship the up response message feedback by the downlink data transmission of embodiment of the invention definition, and the ordering of gathering each related descending sub frame according to related descending sub frame comes allocation map label m.The CCE index N that order takies according to scheduling authorization _CCEWith the mapping label m that is descending related subframe A distribution, subscriber equipment and base station can be calculated according to method noted earlier and be obtained up responder link resource index

Take Fig. 9 as example, the related descending sub frame set of the second radio frames subframe 2 is { the first radio frames subframe 5, the first radio frames subframe 6} or { the first radio frames subframe 6, the first radio frames subframe 5}, can be respectively so the first radio frames subframe 5 and the first radio frames subframe 6 allocation map label m=0 and m=1, perhaps allocation map label m=1 and m=0.

Those skilled in the art can know, the base station sends downlink data (just passing data) to subscriber equipment, subscriber equipment receives the downlink data that the base station sends, judge whether correct reception, and generate corresponding up response message, when up response message was NACK, subscriber equipment sent up response message NACK to the base station, and the base station resends downlink data (data retransmission) to subscriber equipment.For downlink data transmission, its data re-transmission is fully based on the scheduling authorization order, and downlink data transmission can send at identical descending sub frame with the scheduling authorization order, does not need to define up response message and feeds back to timing relationship between the downlink data re-transmission.Therefore, the data transmission method of the embodiment of the invention does not have strictly to limit up response message and feeds back to the timing relationship of downlink data between retransmitting and must satisfy above-mentioned time threshold.

Embodiment two

The embodiment of the invention provides a kind of data transmission method, is applicable to the network equipment (such as the base station).Concrete, the network equipment receives the upstream data that subscriber equipment sends, and judges whether correct reception, and generate corresponding descending response message (ACK or NACK) that the base station sends descending response message to subscriber equipment.

In the data transmission method of the embodiment of the invention, the up-downgoing proportioning changes, subscriber equipment need to know in advance that the up-downgoing proportioning changes constantly, and the up-downgoing proportioning before and after changing, and is optional, the network equipment can be by proprietary RRC signaling before the up-downgoing proportioning changes, the up-downgoing proportioning is changed constantly, and the up-downgoing proportioning notifying user equipment before and after changing, certainly, also can pass through other method, as coming notifying user equipment by broadcast or physical layer signaling.Thereby subscriber equipment can be clear and definite when to network equipment feeding back uplink response message, thereby realize professional seamlessly transitting.

In the data transmission method of the embodiment of the invention, change for the up-downgoing proportioning, defined transmitting uplink data to the timing relationship between the descending response message feedback: send the descending sub frame of descending response message or special subframe for and the subframe of transmitting uplink data between satisfy descending sub frame or the special subframe of time threshold, as seen, in time threshold, the network equipment is wanted to finish at least the reception of upstream data, also whether is generated corresponding descending response message according to correct reception.Usually, the network equipment is finished the upstream data reception and generated the needed time of descending response message, and is relevant with the disposal ability of device.Although the device disposal ability of the network equipment is usually much larger than the device disposal ability of subscriber equipment, but the network equipment need to receive the upstream data of all subscriber equipmenies and generate corresponding descending response message, and subscriber equipment only need to receive one's own downlink data and generate up response message.For the TDD system of LTE, after considering the device disposal ability, described time threshold is 4ms, i.e. 4 subframes.

In the data transmission method of the embodiment of the invention, the up-downgoing proportioning changes, and has defined descending response message and has fed back to timing relationship between the uplink data retransmission: the sub-frame of uplink of uplink data retransmission for and send first sub-frame of uplink that satisfies time threshold between the descending sub frame of descending response message or the special subframe.

The below's minute three kinds of situations are described timing relationship between the subframe of the subframe of feeding back downlink response message in the data transmission method of the embodiment of the invention and transmitting uplink data in detail.

(1) the first situation:

The first radio frames is to the second radio frames, the up-downgoing proportioning changes, the up-downgoing proportioning of the first radio frames and the up-downgoing proportioning of the second radio frames are compared, only exist the sub-frame of uplink correspondence of the first radio frames to change over the situation of the descending sub frame of the second radio frames.

In the first situation, owing to only there is the situation that is changed over descending sub frame by sub-frame of uplink, although according to the timing relationship of the up-downgoing proportioning definition of the first radio frames in the prior art, its descending response message does not feed back in the first radio frames; But determined that subframe of timing relationship according to the definition of the up-downgoing proportioning of the first radio frames, in the second radio frames, remain descending sub frame, thereby described transmitting uplink data still can carry out according to the timing relationship that is the up-downgoing proportioning definition of the first radio frames to the timing relationship between the descending response message, and the benefit of doing like this is to avoid introducing new timing relationship.Namely in the first situation, to described transmitting uplink data, the timing relationship of the defined transmitting uplink data of up-downgoing proportioning between the descending response message according to being the first radio frames sends described descending response message with the subframe that label is identical in the second radio frames.

In the first situation, when described descending response message when denying response message, receive the re-transmission of described upstream data, wherein, receiving the subframe at described uplink data retransmission place, is first sub-frame of uplink that sends after the subframe of described descending response message place, satisfies described time threshold requirement.

Exemplary, as shown in figure 13, change to up-downgoing proportioning 2 as example take up-downgoing proportioning 0, timing relationship according to the definition of the up-downgoing proportioning of the first radio frames in the prior art, subframe 7 with the first radio frames, descending response message corresponding to subframe 8 and subframe 9 transmitting uplink data is respectively in the subframe 1 of next radio frames, subframe 5 and subframe 6 feedbacks, thereby in the embodiment of the invention, the network equipment is also in the subframe 1 of the second radio frames, subframe 5 and subframe 6 feeding back downlink response messages, and the network equipment receives the data retransmission of the subframe 7 of the first radio frames in the subframe 7 of the second radio frames.

Exemplary, as shown in figure 14, change to up-downgoing proportioning 1 as example take up-downgoing proportioning 0, timing relationship according to the definition of the up-downgoing proportioning of the first radio frames in the prior art, subframe 7 with the first radio frames, descending response message corresponding to subframe 8 and subframe 9 transmitting uplink data is respectively in the subframe 1 of next radio frames, subframe 5 and subframe 6 feedbacks, thereby in the embodiment of the invention, the network equipment is also in the subframe 1 of the second radio frames, subframe 5 and subframe 6 feeding back downlink response messages, and the network equipment receives the data retransmission of the subframe 7 of the first radio frames in the subframe 7 of the second radio frames.

Exemplary, as shown in figure 15, change to up-downgoing proportioning 2 as example take up-downgoing proportioning 1, timing relationship according to the definition of the up-downgoing proportioning of the first radio frames in the prior art, the descending response message corresponding with the subframe 7 of the first radio frames and subframe 8 transmitting uplink data is respectively in subframe 1, subframe 4 feedbacks of next radio frames, thereby in the embodiment of the invention, the network equipment is also at subframe 1, the subframe 4 feeding back downlink response messages of the second radio frames, and the network equipment receives the data retransmission of the subframe 7 of the first radio frames in the subframe 7 of the second radio frames.

(2) the second situation:

The first radio frames is to the second radio frames, the up-downgoing proportioning changes, the up-downgoing proportioning of the first radio frames and the up-downgoing proportioning of the second radio frames are compared, only exist the descending sub frame correspondence of the first radio frames to change over the situation of the sub-frame of uplink of the second radio frames.

In the second situation, owing to only exist descending sub frame to change over the situation of sub-frame of uplink, determined that subframe of timing relationship according to the definition of the up-downgoing proportioning of the first radio frames in the prior art, in the second radio frames, sub-frame of uplink may be become, descending response message can not be sent.In the second situation, to described transmitting uplink data, send the subframe of described descending response message, be in the second radio frames and receive first descending sub frame that satisfies described time threshold requirement between the subframe of described transmitting uplink data place.

In the second situation, when described descending response message when denying response message, receive the re-transmission of described upstream data, wherein, receiving the subframe at described uplink data retransmission place, is first sub-frame of uplink that sends after the subframe of described descending response message place, satisfies described time threshold requirement.

Exemplary, as shown in figure 16, up-downgoing proportioning 2 changes to up-downgoing proportioning 1, according to the timing relationship of the up-downgoing proportioning of the first radio frames in prior art definition, the descending response message corresponding with subframe 7 transmitting uplink data of the first radio frames is in subframe 3 feedbacks of next radio frames.But in next radio frames, according to the up-downgoing proportioning of the second radio frames, subframe 3 has been changed into sub-frame of uplink, can not send descending response message.Therefore, in embodiments of the present invention, according to the transmitting uplink data of embodiment of the invention definition to the timing relationship between the descending response message feedback, as shown in figure 16, to the transmitting uplink data that occurs in the first radio frames subframe 7, the network equipment is at the descending response message corresponding to subframe 1 feedback of the second radio frames, and, feed back to timing relationship between the uplink data retransmission according to the descending response message of embodiment of the invention definition, the network equipment receives the data retransmission of the subframe 7 of the first radio frames in the subframe 7 of the second radio frames.

Exemplary, as shown in figure 17, up-downgoing proportioning 2 changes to up-downgoing proportioning 0, according to the timing relationship of the up-downgoing proportioning of the first radio frames in prior art definition, the descending response message corresponding with subframe 7 transmitting uplink data of the first radio frames is in subframe 3 feedbacks of next radio frames.But in next radio frames, according to the up-downgoing proportioning of the second radio frames, subframe 3 has been changed into sub-frame of uplink, can not send descending response message.Therefore, in embodiments of the present invention, according to the transmitting uplink data of embodiment of the invention definition to the timing relationship between the descending response message feedback, to the transmitting uplink data that occurs in the first radio frames subframe 7, the network equipment is at the descending response message corresponding to subframe 1 feedback of the second radio frames, and, feed back to timing relationship between the uplink data retransmission according to the descending response message of embodiment of the invention definition, the network equipment receives the data retransmission of the subframe 7 of the first radio frames in the subframe 7 of the second radio frames.

Exemplary, as shown in figure 18, up-downgoing proportioning 1 changes to up-downgoing proportioning 0, according to the transmitting uplink data of embodiment of the invention definition to the timing relationship between the descending response message feedback, the descending response message corresponding with subframe 7 transmitting uplink data of the first radio frames, the network equipment is at the descending response message corresponding to subframe 1 feedback of the second radio frames, and, feed back to timing relationship between the uplink data retransmission according to the descending response message of embodiment of the invention definition, the network equipment receives the data retransmission of the subframe 7 of the first radio frames in the subframe 7 of the second radio frames;

Still as shown in figure 18, the descending response message corresponding with subframe 8 transmitting uplink data of the first radio frames, the network equipment is at the descending response message corresponding to subframe 5 feedbacks of the second radio frames, and the network equipment receives the data retransmission of the subframe 8 of the first radio frames in the subframe 9 of the second radio frames.

Exemplary, as shown in figure 19, up-downgoing proportioning 2 changes to up-downgoing proportioning 6, according to the transmitting uplink data of embodiment of the invention definition to the timing relationship between the descending response message feedback, the descending response message corresponding with subframe 7 transmitting uplink data of the first radio frames, the network equipment is at the descending response message corresponding to subframe 1 feedback of the second radio frames, and, feed back to timing relationship between the uplink data retransmission according to the descending response message of embodiment of the invention definition, the network equipment receives the data retransmission of the subframe 7 of the first radio frames in the subframe 8 of the second radio frames.

(3) the third situation:

The first radio frames is to the second radio frames, the up-downgoing proportioning changes, the up-downgoing proportioning of the first radio frames and the up-downgoing proportioning of the second radio frames are compared, both exist the sub-frame of uplink correspondence of the first radio frames to change over the descending sub frame of the second radio frames, and also existed the descending sub frame correspondence of the first radio frames to change over the situation of the sub-frame of uplink of the second radio frames.

In the third situation, to described transmitting uplink data, send the subframe of described descending response message, be in the second radio frames and receive first descending sub frame that satisfies described time threshold requirement between the subframe of described transmitting uplink data place.

In the third situation, when described descending response message when denying response message, receive the re-transmission of described upstream data, wherein, receiving the subframe at described uplink data retransmission place, is first sub-frame of uplink that sends after the subframe of described descending response message place, satisfies described time threshold requirement.

Exemplary, as shown in figure 20, up-downgoing proportioning 4 changes to up-downgoing proportioning 2, timing relationship according to the definition of the up-downgoing proportioning of the first radio frames in the prior art, the descending response message corresponding with subframe 2 transmitting uplink data of the first radio frames, the network equipment is at the descending response message corresponding to subframe 8 feedbacks of the first radio frames, and, feed back to the timing relationship of upstream data between again transmitting according to the descending response message of embodiment of the invention definition, the network equipment receives the data retransmission of the subframe 2 of the first radio frames in the subframe 2 of the second radio frames;

Still as shown in figure 20, timing relationship according to the definition of the up-downgoing proportioning of the first radio frames in the prior art, the descending response message corresponding with subframe 3 transmitting uplink data of the first radio frames, the network equipment is at the descending response message corresponding to subframe 9 feedbacks of the first radio frames, and, feed back to the timing relationship of upstream data between again transmitting according to the descending response message of embodiment of the invention definition, the network equipment receives the data retransmission of the subframe 3 of the first radio frames in the subframe 7 of the second radio frames.

Exemplary, as shown in figure 21, up-downgoing proportioning 3 changes to up-downgoing proportioning 1, timing relationship according to the definition of the up-downgoing proportioning of the first radio frames in the prior art, the descending response message corresponding with subframe 2 transmitting uplink data of the first radio frames, the network equipment is at the descending response message corresponding to subframe 8 feedbacks of the first radio frames, and, feed back to the timing relationship of upstream data between again transmitting according to the descending response message of embodiment of the invention definition, the network equipment receives the data retransmission of the subframe 2 of the first radio frames in the subframe 2 of the second radio frames;

Still as shown in figure 21, timing relationship according to the definition of the up-downgoing proportioning of the first radio frames in the prior art, the descending response message corresponding with subframe 3 transmitting uplink data of the first radio frames, the network equipment is at the descending response message corresponding to subframe 9 feedbacks of the first radio frames, and, feed back to the timing relationship of upstream data between again transmitting according to the descending response message of embodiment of the invention definition, the network equipment receives the data retransmission of the subframe 3 of the first radio frames in the subframe 3 of the second radio frames;

Still as shown in figure 21, according to the transmitting uplink data of embodiment of the invention definition to the timing relationship between the descending response message feedback, the descending response message corresponding with subframe 4 transmitting uplink data of the first radio frames, the network equipment is at the descending response message corresponding to subframe 0 feedback of the second radio frames, and, feed back to the timing relationship of upstream data between again transmitting according to the descending response message of embodiment of the invention definition, the network equipment receives the data retransmission of the subframe 4 of the first radio frames in the subframe 7 of the second radio frames.

Exemplary, as shown in figure 22, up-downgoing proportioning 2 changes to up-downgoing proportioning 4, timing relationship according to the definition of the up-downgoing proportioning of the first radio frames in the prior art, the descending response message corresponding with subframe 2 transmitting uplink data of the first radio frames, the network equipment is at the descending response message corresponding to subframe 6 feedbacks of the first radio frames, and, feed back to the timing relationship of upstream data between again transmitting according to the up-downgoing response message of embodiment of the invention definition, the network equipment receives the data retransmission of the subframe 2 of the first radio frames in the subframe 2 of the second radio frames;

Still as shown in figure 22, according to the transmitting uplink data of embodiment of the invention definition to the timing relationship between the descending response message feedback, the descending response message corresponding with subframe 7 transmitting uplink data of the first radio frames, the network equipment is at the descending response message corresponding to subframe 1 feedback of the second radio frames.

Exemplary, as shown in figure 23, up-downgoing proportioning 1 changes to up-downgoing proportioning 3, timing relationship according to the definition of the up-downgoing proportioning of the first radio frames in the prior art, the descending response message corresponding with subframe 2 transmitting uplink data of the first radio frames, the network equipment is at the descending response message corresponding to subframe 6 feedbacks of the first radio frames, and, feed back to the timing relationship of upstream data between again transmitting according to the up-downgoing response message of embodiment of the invention definition, the network equipment receives the data retransmission of the subframe 6 of the first radio frames in the subframe 2 of the second radio frames;

Still as shown in figure 23, timing relationship according to the definition of the up-downgoing proportioning of the first radio frames in the prior art, the descending response message corresponding with subframe 3 transmitting uplink data of the first radio frames, the network equipment is at the descending response message corresponding to subframe 9 feedbacks of the first radio frames, and, to the timing relationship between the descending response message feedback, the network equipment receives the data retransmission of the subframe 3 of the first radio frames in the subframe 3 of the second radio frames according to the transmitting uplink data of embodiment of the invention definition;

Still as shown in figure 23, according to the transmitting uplink data of embodiment of the invention definition to the timing relationship between the descending response message feedback, the descending response message corresponding with subframe 7 transmitting uplink data of the first radio frames, the network equipment is at the descending response message corresponding to subframe 1 feedback of the second radio frames;

Still as shown in figure 23, according to the transmitting uplink data of embodiment of the invention definition to the timing relationship between the descending response message feedback, the descending response message corresponding with subframe 8 transmitting uplink data of the first radio frames, the network equipment is at the descending response message corresponding to subframe 5 feedbacks of the second radio frames.

In addition, those skilled in the art can know that in the TDD of LTE system, prior art is to merge to the received signal according to the HARQ process number that the transmission of data uses when receiving transmitting uplink data and receive the re-transmission upstream data.

But in the data transmission method of the embodiment of the invention, radio frames generation up-downgoing proportioning changes, and transmitting uplink data and re-transmission thereof may be used different HARQ process numbers.As shown in figure 24, the descending response message corresponding with subframe 7 transmitting uplink data of the first radio frames, the network equipment is at the descending response message corresponding to subframe 3 feedbacks of the second radio frames, the network equipment receives the data retransmission of the subframe 7 of the first radio frames in the subframe 7 of the second radio frames, wherein, the HARQ process number that the subframe 7 of the first radio frames just passes upstream data is 2, and the HARQ process number that retransmits upstream data is 1, can't carry out to the received signal correct merging according to the HARQ process number.Therefore, the data transmission method that the embodiment of the invention provides, the network equipment can be according to the timing relationship of the first biography of upstream data with uplink data retransmission, the first biography upstream data and the re-transmission upstream data that receive are merged, to improve the receptivity of upstream data, no longer merge to the received signal according to the HARQ process number.

Embodiment three

The embodiment of the invention provides a kind of data transmission method, is applicable to subscriber equipment.Before transfer of data, the network equipment sends first the scheduling authorization order to subscriber equipment, and subscriber equipment is according to scheduling authorization command scheduling upstream data.

In the kind data transmission method of the embodiment of the invention, change for the up-downgoing proportioning, defined and sent the subframe of upstream data and the timing relationship between the subframe of scheduling authorization order place: scheduling authorization order place subframe is for satisfying nearest descending sub frame or the special subframe that time threshold requires with the time interval of the sub-frame of uplink that sends upstream data, as seen, in described time threshold, subscriber equipment wants to finish reception and the parsing of scheduling authorization order at least.Usually, subscriber equipment is finished the reception and needed time of parsing of scheduling authorization order, and is relevant with the disposal ability of device.For the TDD system of LTE, after considering the device disposal ability, described time threshold is 4ms, i.e. 4 subframes.

As shown in figure 25, up-downgoing proportioning 1 is changed into up-downgoing proportioning 2, take to the upstream data that sends in the subframe 2 the second radio frames as example, according in the prior art for the scheduling authorization order of up-downgoing proportioning 2 definition to the timing relationship between the transmitting uplink data, its scheduling authorization order will be in the subframe 8 of previous radio frames, i.e. subframe 8 receptions of the first radio frames, but the up-downgoing proportioning 1 according to the first radio frames, the first radio frames subframe 8 is sub-frame of uplink, can't the receiving scheduling authorization command.According to the subframe and the timing relationship between the subframe of scheduling authorization order place of the transmission upstream data of embodiment of the invention definition, to the upstream data of 2 transmissions of subframe in the second radio frames, subscriber equipment is in the subframe 6 receiving scheduling authorization command of the first radio frames.

As shown in figure 26, up-downgoing proportioning 2 is changed into up-downgoing proportioning 1, take to the upstream data that sends in the subframe 2 the second radio frames as example, according to the subframe of the transmission upstream data of embodiment of the invention definition and the timing relationship between the subframe of scheduling authorization order place, subscriber equipment is in the subframe 8 receiving scheduling authorization command of the first radio frames.Take to the upstream data that sends in the subframe 3 the second radio frames as example, according to the subframe of the transmission upstream data of embodiment of the invention definition and the timing relationship between the subframe of scheduling authorization order place, subscriber equipment is in the subframe 9 receiving scheduling authorization command of the first radio frames.

As shown in figure 27, up-downgoing proportioning 2 is changed into up-downgoing proportioning 0, take to the upstream data that sends in the subframe 2 the second radio frames as example, according to the subframe of the transmission upstream data of embodiment of the invention definition and the timing relationship between the subframe of scheduling authorization order place, subscriber equipment is in the subframe 8 receiving scheduling authorization command of the first radio frames.Take to the upstream data that sends in the subframe 3 the second radio frames as example, according to the subframe of the transmission upstream data of embodiment of the invention definition and the timing relationship between the subframe of scheduling authorization order place, subscriber equipment is in the subframe 9 receiving scheduling authorization command of the first radio frames.

As shown in figure 28, up-downgoing proportioning 0 is changed into up-downgoing proportioning 2, take to the upstream data that sends in the subframe 2 the second radio frames as example, according to the subframe of the transmission upstream data of embodiment of the invention definition and the timing relationship between the subframe of scheduling authorization order place, subscriber equipment is in the subframe 6 receiving scheduling authorization command of the first radio frames.

As shown in figure 29, up-downgoing proportioning 1 is changed into up-downgoing proportioning 0, take to the upstream data that sends in the subframe 2 the second radio frames as example, according to the subframe of the transmission upstream data of embodiment of the invention definition and the timing relationship between the subframe of scheduling authorization order place, subscriber equipment is in the subframe 6 receiving scheduling authorization command of the first radio frames.Take to the upstream data that sends in the subframe 3 the second radio frames as example, according to the subframe of the transmission upstream data of embodiment of the invention definition and the timing relationship between the subframe of scheduling authorization order place, subscriber equipment is in the subframe 6 receiving scheduling authorization command of the first radio frames.

As shown in figure 30, for becoming up-downgoing proportioning 1 from up-downgoing proportioning 0, according to the subframe of the transmission upstream data of embodiment of the invention definition and the timing relationship between the subframe of scheduling authorization order place, the upstream data that sends in the subframe 2 in the second radio frames, subscriber equipment is in the subframe 6 receiving scheduling authorization command of the first radio frames, the upstream data that sends in the subframe 3 in the second radio frames, subscriber equipment is in the subframe 6 receiving scheduling authorization command of the first radio frames.

In addition, because the scheduling authorization order corresponding with the transmitting uplink data of the subframe 2 of the second radio frames and subframe 3 all receives in the subframe 6 of the first radio frames, can be adjusted into so: the upstream data that sends in the subframe 3 in the second radio frames, subscriber equipment is in the subframe 6 receiving scheduling authorization command of the first radio frames, and the upstream data that sends in the subframe 2 in the second radio frames, subscriber equipment is in the subframe 5 of the first radio frames, as shown in phantom in Figure 30.As seen, when the second radio frames the scheduling authorization order of a plurality of sub-frame of uplink occurs when the identical subframe of the first radio frames sends, can be according to sub-frame of uplink order from back to front, in the first radio frames, seek successively nearest, inferior nearest descending sub frame or the special subframe satisfy the time threshold requirement, send the scheduling authorization order.

Still shown in 30 dotted lines among the figure, the up-downgoing proportioning of the first radio frames is 0 o'clock, according to the subframe of the transmission upstream data of the first radio frames definition and the timing relationship between the subframe of scheduling authorization order place in the prior art, the upstream data that sends in the subframe 9 in the first radio frames, subscriber equipment is in the subframe 5 receiving scheduling authorization command of the first radio frames, is not subjected to the subframe of transmission upstream data of embodiment of the invention definition and the restriction of the timing relationship between the subframe of scheduling authorization order place.

The above; only for the better embodiment of the present invention, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claims.

One of ordinary skill in the art will appreciate that all or part of flow process that realizes in above-described embodiment method, to come the relevant hardware of instruction to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process such as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or store-memory body (Random Access Memory, RAM) etc. at random.

Claims

1. a data transmission method is characterized in that, comprising:

2. data transmission method according to claim 1 is characterized in that, the described time interval is satisfied the time threshold requirement, comprising: described interval greater than or equal described time threshold.

3. data transmission method according to claim 1 and 2 is characterized in that, described time threshold is 4ms.

4. data transmission method according to claim 1 and 2, it is characterized in that, when the first timing according to described the first radio frames, when determining to use sub-frame of uplink in described the first radio frames to feed back the response message of described downlink data, then in the described sub-frame of uplink of described the first radio frames, send described response message to described base station.

5. data transmission method according to claim 1 and 2 is characterized in that, described the first radio frames comprises a radio frames or two adjacent radio frames.

6. data transmission method according to claim 1 and 2 is characterized in that, described the second radio frames comprises a radio frames or two adjacent radio frames.

7. data transmission method according to claim 1 and 2 is characterized in that, described method also comprises:

8. data transmission method according to claim 7 is characterized in that, described method also comprises:

9. data transmission method according to claim 1 and 2 is characterized in that, described method also comprises:

10. a data transmission device is characterized in that, comprising:

11. data transmission device according to claim 10 is characterized in that, the described time interval is satisfied the time threshold requirement, comprising: described interval greater than or equal described time threshold.

12. according to claim 10 or 11 described data transmission devices, it is characterized in that described time threshold is 4ms.

13. according to claim 10 or 11 described data transmission devices, it is characterized in that, described transmitting element, also be used for when the first timing according to described the first radio frames, when determining to use sub-frame of uplink in described the first radio frames to feed back the response message of described downlink data, then in the described sub-frame of uplink of described the first radio frames, send described response message to described base station.

14. according to claim 10 or 11 described data transmission devices, it is characterized in that described the first radio frames comprises one or two adjacent radio frames, described the second radio frames comprises one or two adjacent radio frames.

15. according to claim 10 or 11 described data transmission devices, it is characterized in that described device also comprises:

Determining unit is used for when using identical sub-frame of uplink to feed back the response message of downlink data of a plurality of descending sub frames and/or special subframe, determines that the subframe that described a plurality of descending sub frame and/or special subframe consist of gathers;

16. data transmission device according to claim 15, it is characterized in that, described receiving element also is used for receiving the scheduling authorization order that described base station sends from descending sub frame or the special subframe of described the first radio frames, and described scheduling authorization order is used for the dispatching downlink transfer of data;

Described transmitting element, also for the control channel unit CCE index that takies according to described scheduling authorization order and the mapping label of described descending sub frame or special subframe, be retrieved as the up responder link resource index that described downlink data transmission is distributed, use channel resource corresponding to described up responder link resource index, send described response message to described base station.

17. data transmission device according to claim 15, it is characterized in that, described receiving element, also be used for receiving described base station and send the radio resource control RRC signaling, described RRC signaling is carried the temporal information that the up-downgoing proportioning changes is occured, and the up-downgoing proportioning information of described the second radio frames.

18. a data transmission method is characterized in that, comprising:

19. data transmission method according to claim 18 is characterized in that, the described time interval is satisfied the time threshold requirement, comprising:

Described interval greater than or equal described time threshold.

20. according to claim 18 or 19 described data transmission methods, it is characterized in that described time threshold is 4ms.

21. according to claim 18 or 19 described data transmission methods, it is characterized in that, when the second timing according to described the first radio frames, when determining to use the response message that descending sub frame in described the first radio frames or special subframe feed back described upstream data, the response message that then sends described upstream data at described descending sub frame or the described special subframe of described the first radio frames is to described subscriber equipment.

22. according to claim 18 or 19 described data transmission methods, it is characterized in that, in described the second radio frames, use and to satisfy descending sub frame or the special subframe that time threshold requires with the time interval of the described sub-frame of uplink of described the first radio frames and send described response message to described subscriber equipment, comprising:

Be changed to the process of up-downgoing proportioning of described the second radio frames in the up-downgoing proportioning from described the first radio frames, when the sub-frame of uplink correspondence that only has described the first radio frames was changed to the descending sub frame of described the second radio frames, the time interval of the described sub-frame of uplink of described and described the first radio frames satisfied descending sub frame or the special subframe that time threshold requires and is: descending sub frame or the special subframe determined according to the second timing of described the first radio frames;

Perhaps, be changed to the process of up-downgoing proportioning of described the second radio frames in the up-downgoing proportioning from described the first radio frames, when at least one the descending sub frame correspondence that has described the first radio frames was changed to the sub-frame of uplink of described the second radio frames, the time interval of the described sub-frame of uplink of described and described the first radio frames satisfied descending sub frame or the special subframe that time threshold requires and is: satisfy first descending sub frame or the special subframe that time threshold requires with the time interval of the described sub-frame of uplink of described the first radio frames.

23. data transmission method according to claim 18 is characterized in that, described method also comprises:

When the response message of described upstream data is non-definite NACK, receive the described upstream data that described subscriber equipment resends from satisfying first sub-frame of uplink that time threshold requires with the time interval of the described descending sub frame of the response message of the described upstream data of described feedback or described special subframe.

24. data transmission method according to claim 23 is characterized in that, described method also comprises:

25. a data transmission device is characterized in that, comprising:

26. data transmission device according to claim 25 is characterized in that, the described time interval is satisfied the time threshold requirement, comprising:

Described interval greater than or equal described time threshold.

27. according to claim 25 or 26 described data transmission devices, it is characterized in that described time threshold is 4ms.

28. according to claim 25 or 26 described data transmission devices, it is characterized in that, described transmitting element, also be used for when the second timing according to described the first radio frames, when determining to use the response message that descending sub frame in described the first radio frames or special subframe feed back described upstream data, the response message that then sends described upstream data at described descending sub frame or the described special subframe of described the first radio frames is to described subscriber equipment.

29. according to claim 25 or 26 described data transmission devices, it is characterized in that, described transmitting element, also specifically be used for being changed in the up-downgoing proportioning from described the first radio frames the process of the up-downgoing proportioning of described the second radio frames, when the sub-frame of uplink correspondence that only has described the first radio frames was changed to the descending sub frame of described the second radio frames, the time interval of the described sub-frame of uplink of described and described the first radio frames satisfied descending sub frame or the special subframe that time threshold requires and is: descending sub frame or the special subframe determined according to the second timing of described the first radio frames;

Perhaps, described transmitting element, also specifically be used for being changed in the up-downgoing proportioning from described the first radio frames the process of the up-downgoing proportioning of described the second radio frames, when at least one the descending sub frame correspondence that has described the first radio frames was changed to the sub-frame of uplink of described the second radio frames, the time interval of the described sub-frame of uplink of described and described the first radio frames satisfied descending sub frame or the special subframe that time threshold requires and is: satisfy first descending sub frame or the special subframe that time threshold requires with the time interval of the described sub-frame of uplink of described the first radio frames.

30. data transmission device according to claim 25, it is characterized in that, described receiving element, also be used for when the response message of described upstream data is non-definite NACK, from satisfying the described upstream data that the described subscriber equipment of reception resends first sub-frame of uplink that time threshold requires with the time interval of the described descending sub frame of the response message of the described upstream data of described feedback or described special subframe.

31. data transmission device according to claim 30 is characterized in that, described device also comprises:

32. a data transmission method is characterized in that, comprising:

33. data transmission method according to claim 10 is characterized in that, the described time interval is satisfied the time threshold requirement, comprising:

Described interval greater than or equal described time threshold.

34. according to claim 10 or 11 described data transmission methods, it is characterized in that described time threshold is 4ms.

35. a data transmission device is characterized in that, comprising:

Receiving element, be used for the 3rd timing according to the second radio frames, determine that the scheduling authorization order that can't receive by descending sub frame or the special subframe of described the second radio frames dispatches the upstream data in the sub-frame of uplink of described the second radio frames, then in the first radio frames, receive the scheduling authorization order that the base station sends from satisfying nearest descending sub frame that time threshold requires or the special subframe with the time interval of the sub-frame of uplink of the second radio frames;

36. data transmission device according to claim 35 is characterized in that, the described time interval is satisfied the time threshold requirement, comprising:

Described interval greater than or equal described time threshold.

37. according to claim 35 or 36 described data transmission devices, it is characterized in that described time threshold is 4ms.

38. a data transmission method is characterized in that, comprising:

39. described data transmission method is characterized in that according to claim 38, the described time interval is satisfied the time threshold requirement, comprising:

Described interval greater than or equal described time threshold.

40. according to claim 38 or 39 described data transmission methods, it is characterized in that described time threshold is 4ms.

41. a data transmission device is characterized in that, comprising:

42. described data transmission device is characterized in that according to claim 41, the described time interval is satisfied the time threshold requirement, comprising:

Described interval greater than or equal described time threshold.

43. according to claim 41 or 42 described data transmission devices, it is characterized in that described time threshold is 4ms.