CN103036657B

CN103036657B - Method and device for data transmission

Info

Publication number: CN103036657B
Application number: CN201110293734.XA
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: 2015-06-17
Anticipated expiration: 2031-09-30
Also published as: WO2013044880A1; CN103036657A

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 present invention relates to communication technical field, particularly relates to a kind of data transmission method and device.

Background technology

In a new generation's communication system, HARQ (Hybrid Automatic Repeat Request, hybrid automatic repeat-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 to the data received and separates code check, sends the feedback information determining (ACK) or non-determined (NACK) according to check results to transmitting terminal.If transmitting terminal receives the feedback information determined, then start to send new data; If transmitting terminal receives non-deterministic feedback information, then illustrate that transmitting terminal sends corrupt data, transmitting terminal needs the error data resending last time, and the last time error data of receiving terminal in the data retransmission received and buffer memory carries out merging decoding, solves correct data.

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

But, when the up-downgoing proportioning of radio frames changes, the defect that feedback information and data retransmission cannot transmit smoothly can be there is, the service efficiency of influential system resource.

In prior art, the up-downgoing proportioning of usual radio frames remains unchanged, and by the sequential relationship of the first biography data that define, feedback information, data retransmission three operation, data can be transmitted smoothly in radio frames.But, when the up-downgoing proportioning of radio frames changes, if still according to the sequential relationship of the first biography data defined, feedback information, data retransmission three operation, feedback information and data retransmission can be caused to transmit smoothly, the service efficiency of influential system resource.

In the data transmission method of the embodiment of the present invention and device, term used " just passes data ", " just passing the subframes of data " and " data retransmission ", " subframe of data retransmission " do following understanding, if data send unsuccessfully and need again to transmit, " just pass data " and refer to the state before this data re-transmission, data retransmission refers to the state when this data re-transmission.Be the subframe of data retransmission for retransmitting the subframe of these data, the subframe sending these data before re-transmission is the subframe just passing data.Be appreciated that each descending sub frame, sub-frame of uplink and special subframe both may be used for just passing data, also may 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, evolution Universal Terrestrial wireless access) 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 present invention.

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

Step 101, the downlink data sent by the descending sub frame in the first radio frames or special subframe reception base station.

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

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

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

The technical scheme provided as can be seen from the invention described above embodiment, when up-downgoing proportioning changes, when the change of particularly up-downgoing proportioning is comparatively frequent, corresponding response message feedback can be correctly carried out between subscriber equipment and the network equipment, thus can the seamlessly transitting of supporting business better, and improve the service efficiency of system resource.

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

Preferably, described time threshold is 4ms.

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

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

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

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

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

Be retrieved as the mapping label of the sub-frame allocation that described sub-frame set comprises.

Wherein, the mapping label of the sub-frame allocation that base station can comprise for sub-frame set, subscriber equipment can from the mapping label being retrieved as the sub-frame allocation that sub-frame set comprises at the beginning of base station.

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

Receive the scheduling authorization order of described base station transmission from the descending sub frame described first radio frames or special subframe, described scheduling authorization order is used for dispatching downlink transfer of data;

The control channel unit CCE index taken 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 the channel resource that described up responder link resource index is corresponding, send described response message to described base station.

Visible, consider feeding back uplink response message identical sub-frame of uplink has multiple subscriber equipment while, then need for this multiple subscriber equipment distributes different up responder link resources respectively.

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

Visible, up-downgoing proportioning by proprietary RRC signaling before up-downgoing proportioning changes, can be changed the moment by base station, and the up-downgoing proportioning notifying user equipment before and after changing.Can replacing, also can passing through other method, as carried out notifying user equipment by broadcast or physical layer signaling.

Thus subscriber equipment can be clear and definite when to the up response message of base station feedback, thus realize seamlessly transitting of business.

The technical scheme provided as can be seen from the invention described above embodiment, when up-downgoing proportioning changes, when the change of particularly up-downgoing proportioning is comparatively frequent, corresponding data dispatch, response message feedback correctly can be carried out between subscriber equipment and the network equipment, thus can the seamlessly transitting of supporting business better, and improve the service efficiency of system resource.

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

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

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

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

Preferably, described time threshold is 4ms.

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

When identical sub-frame of uplink feeds back the response message of the downlink data of multiple descending sub frame and/or special subframe, determine the sub-frame set that described multiple descending sub frame and/or special subframe are formed;

The sub-frame allocation comprised for described sub-frame set maps label.

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

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

The channel resource corresponding according to described up responder link resource index, obtains the response message that described subscriber equipment sends.

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

Visible, up-downgoing proportioning by proprietary RRC signaling before up-downgoing proportioning changes, can be changed the moment by base station, and the up-downgoing proportioning notifying user equipment before and after changing.Can replacing, also can passing through other method, as carried out notifying user equipment by broadcast or physical layer signaling.Thus subscriber equipment can be clear and definite when to the up response message of base station feedback, thus realize seamlessly transitting of business.

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

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

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

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

The data transmission device of the embodiment of the present invention can be arranged separately, or is arranged at one with subscriber equipment.

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

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

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

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

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

Determining unit, for when using identical sub-frame of uplink to feed back the response message of the downlink data of multiple descending sub frame and/or special subframe, determines the sub-frame set that described multiple descending sub frame and/or special subframe are formed.

Acquiring unit, for being retrieved as the mapping label of the sub-frame allocation that described sub-frame set comprises.

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

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

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

The data transmission device of the embodiment of the present invention is for realizing data transmission method corresponding to Fig. 1, and the data transmission device of the embodiment of the present invention and form and can the action that performs of the data transmission method of corresponding reference diagram 1 correspondence be understood, does not repeat them here.

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

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

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

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

The data transmission device of the embodiment of the present invention can be arranged separately, or and the network equipment, as base station is arranged at one.

Preferably, described time threshold is 4ms.

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

Determining unit, for when identical sub-frame of uplink feeds back the response message of the downlink data of multiple descending sub frame and/or special subframe, determines the sub-frame set that described multiple descending sub frame and/or special subframe are formed.

Allocation units, map label for the sub-frame allocation comprised for described sub-frame set.

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

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

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

The data transmission device of the embodiment of the present invention is for realizing data transmission method corresponding to Figure 1A, the data transmission device of the embodiment of the present invention and form the action that can perform in the corresponding data transmission method corresponding with reference to Figure 1A and understood, does not repeat them here.

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

Step 301, the upstream data sent by the sub-frame of uplink reception subscriber equipment in the first radio frames.

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

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

Optionally, described time threshold is 4ms.

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

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

In the process of up-downgoing proportioning being changed to described second radio frames from the up-downgoing proportioning of described first radio frames, when the sub-frame of uplink correspondence that only there is the first radio frames is changed to the descending sub frame of the second radio frames, time interval of the described sub-frame of uplink of described and described first radio frames meets the descending sub frame or special subframe that time threshold requires, is the descending sub frame determined according to the second timing of described first radio frames or special subframe;

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

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

According to described transmission upstream data and the time relationship resending described upstream data, the upstream data that the described subscriber equipment that merging is received sends and the described upstream data that described subscriber equipment resends.

The technical scheme provided as can be seen from the invention described above embodiment, when up-downgoing proportioning changes, when the change of particularly up-downgoing proportioning is comparatively frequent, corresponding data dispatch, response message feedback and data re-transmission correctly can be carried out between subscriber equipment and the network equipment, thus can the seamlessly transitting of supporting business better, and improve the service efficiency of system resource.

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

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

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

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

Optionally, described time threshold is 4ms.

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

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

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

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

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

Whether processing unit 402, for determining the second timing according to described first radio frames, can use the descending sub frame in described first radio frames or special subframe to feed back the response message of described upstream data.

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

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

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

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

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

Merge cells, for according to described transmission upstream data and the time relationship resending described upstream data, merges upstream data that the described subscriber equipment received sends and the described upstream data that described subscriber equipment resends.

The data transmission device of the embodiment of the present invention is for realizing data transmission method corresponding to Fig. 3, and the data transmission device of the embodiment of the present invention and form the action that can perform in the data transmission method of corresponding reference diagram 3 correspondence and understood, does not repeat them here.

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

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

Whether processing unit 212, for determining the second timing according to described first radio frames, can use the descending sub frame in described first radio frames or special subframe to receive the response message of described upstream data.

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

Optionally, described time threshold is 4ms.

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

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

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

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

The data transmission device of the embodiment of the present invention is for realizing data transmission method corresponding to Fig. 3 A, the data transmission device of the embodiment of the present invention and form the action that can perform in data transmission method corresponding to corresponding reference diagram 3A and understood, does not repeat them here.

As shown in Figure 5, the embodiment of the present 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 cannot be received by the descending sub frame of described second radio frames or special subframe carrys out the upstream data in the sub-frame of uplink of execution cost second radio frames, then in the first radio frames, meet the nearest descending sub frame or special subframe that time threshold requires from the time interval of the sub-frame of uplink with the second radio frames the scheduling authorization order receiving base station and send.

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

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

The technical scheme provided as can be seen from the invention described above embodiment, when up-downgoing proportioning changes, when the change of particularly up-downgoing proportioning is comparatively frequent, correctly corresponding data dispatch can be carried out between subscriber equipment and the network equipment, thus can the 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 present invention, when the 3rd timing according to described second radio frames, determine that the scheduling authorization order that can be received by the descending sub frame of described second radio frames or special subframe carrys out the upstream data in the sub-frame of uplink of execution cost second radio frames, then in described descending sub frame or the described special subframe receiving scheduling authorization command of described second radio frames, send described upstream data at the described sub-frame of uplink of described second radio frames.

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

Processing unit 601, for determining the 3rd timing according to the second radio frames, the scheduling authorization order whether received by descending sub frame or the special subframe of described second radio frames carrys out the upstream data in the sub-frame of uplink of execution cost second radio frames.

Receiving element 602, for the 3rd timing according to the second radio frames, determine that the scheduling authorization order that cannot be received by the descending sub frame of described second radio frames or special subframe carrys out the upstream data in the sub-frame of uplink of execution cost second radio frames, then in the first radio frames, meet the nearest descending sub frame or special subframe that time threshold requires from the time interval of the sub-frame of uplink with the second radio frames the scheduling authorization order receiving base station and send.

Transmitting element 603, for when successfully receiving scheduling authorization order, sends the upstream data of described scheduling authorization command scheduling to base station at the described sub-frame of uplink of described 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 second radio frames, determine that the scheduling authorization order that can be received by the descending sub frame of described second radio frames or special subframe carrys out the upstream data in the sub-frame of uplink of execution cost second radio frames, then in described descending sub frame or the described special subframe receiving scheduling authorization command of described second radio frames.

The data transmission device of the embodiment of the present invention is for realizing data transmission method corresponding to Fig. 5, and the data transmission device of the embodiment of the present invention and form the action that can perform in the data transmission method of corresponding reference diagram 5 correspondence and understood, does not repeat them here.

As shown in Figure 7, the embodiment of the present 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 cannot be sent by the descending sub frame of described second radio frames or special subframe carrys out the upstream data in the sub-frame of uplink of execution cost second radio frames, then in the first radio frames, use and to meet nearest descending sub frame that time threshold requires with the time interval of the sub-frame of uplink of described second radio frames or special subframe sends described scheduling authorization order to described subscriber equipment.

702, the described upstream data of described subscriber equipment transmission is received at the described sub-frame of uplink of described second radio frames;

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

Base station needs the transmitting uplink data at 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 present invention, when the 3rd timing according to described second radio frames, determine that the scheduling authorization order that can be sent by the descending sub frame of described second radio frames or special subframe carrys out the upstream data in the sub-frame of uplink of execution cost second radio frames, then in described descending sub frame or the order of described special subframe transmission scheduling authorization of described second radio frames, receive described upstream data at the described sub-frame of uplink of described second radio frames.

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

Processing unit 801, for determining the 3rd timing according to the second radio frames, the scheduling authorization order whether sent by descending sub frame or the special subframe of described second radio frames carrys out the upstream data in the sub-frame of uplink of execution cost second radio frames.

Transmitting element 802, for the 3rd timing according to described second radio frames, determine that the scheduling authorization order that cannot be sent by the descending sub frame of described second radio frames or special subframe carrys out the described upstream data in the sub-frame of uplink of execution cost second radio frames, then in the first radio frames, use and to meet nearest descending sub frame that time threshold requires with the time interval of the sub-frame of uplink of described second radio frames or special subframe sends described scheduling authorization order to described subscriber equipment.

Receiving element 803, for receiving the described upstream data that described subscriber equipment sends at the described sub-frame of uplink of described 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 second radio frames, determine that the scheduling authorization order that can be sent by the descending sub frame of described second radio frames or special subframe carrys out the described upstream data in the sub-frame of uplink of execution cost second radio frames, then in described descending sub frame or the order of described special subframe transmission scheduling authorization of described second radio frames.

The data transmission device of the embodiment of the present invention is for realizing data transmission method corresponding to Fig. 7, and the data transmission device of the embodiment of the present invention and form the action that can perform in the data transmission method of corresponding reference diagram 7 correspondence and understood, does not repeat them here.

Below with the specific embodiment of the TDD system of LTE, the data transmission method of the embodiment of the present invention is described, wherein, time threshold is 4ms, and in referenced accompanying drawing, dotted line represents that up-downgoing proportioning changes the moment, is the first radio frames on the left of dotted line, be the second radio frames on the right side of dotted line, hereafter repeat no more.

Summary of the invention

The object of the embodiment of the present invention is to provide a kind of data transmission method and device, realizes the smooth transmission of data.

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

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

The downlink data of base station transmission is received by the descending sub frame in the first radio frames or special subframe;

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

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

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

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

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

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

The upstream data of subscriber equipment transmission is received by the sub-frame of uplink in the first radio frames;

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

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

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

Whether processing unit, for determining the second timing according to described first radio frames, can use the descending sub frame in described first radio frames or special subframe to feed back the response message of described upstream data;

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

According to the 3rd timing of the second radio frames, determine that the scheduling authorization order that cannot be received by the descending sub frame of described second radio frames or special subframe carrys out the upstream data in the sub-frame of uplink of execution cost second radio frames, then in the first radio frames, meet the nearest descending sub frame or special subframe that time threshold requires from the time interval of the sub-frame of uplink with the second radio frames the scheduling authorization order receiving base station and send;

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

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

Processing unit, for determining the 3rd timing according to the second radio frames, the scheduling authorization order whether received by descending sub frame or the special subframe of described second radio frames carrys out the upstream data in the sub-frame of uplink of execution cost second radio frames;

Receiving element, for the 3rd timing according to described second radio frames, determine that the scheduling authorization order that cannot be received by the descending sub frame of described second radio frames or special subframe carrys out the upstream data in the sub-frame of uplink of execution cost second radio frames, then in the first radio frames, meet the nearest descending sub frame or special subframe that time threshold requires from the time interval of the sub-frame of uplink with the second radio frames the scheduling authorization order receiving base station and send;

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

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

According to the 3rd timing of the second radio frames, determine that the scheduling authorization order that cannot be sent by the descending sub frame of described second radio frames or special subframe carrys out the upstream data in the sub-frame of uplink of execution cost second radio frames, then in the first radio frames, use and to meet nearest descending sub frame that time threshold requires with the time interval of the sub-frame of uplink of described second radio frames or special subframe sends described scheduling authorization order to described subscriber equipment;

The described upstream data of described subscriber equipment transmission is received at the described sub-frame of uplink of described second radio frames;

Processing unit, for determining the 3rd timing according to the second radio frames, the scheduling authorization order whether sent by descending sub frame or the special subframe of described second radio frames carrys out the upstream data in the sub-frame of uplink of execution cost second radio frames;

Transmitting element, for the 3rd timing according to the second radio frames, determine that the scheduling authorization order that cannot be sent by the descending sub frame of described second radio frames or special subframe carrys out the upstream data in the sub-frame of uplink of execution cost second radio frames, then in the first radio frames, use and to meet nearest descending sub frame that time threshold requires with the time interval of the sub-frame of uplink of described second radio frames or special subframe sends described scheduling authorization order to described subscriber equipment;

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

Accompanying drawing explanation

In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawings can also be obtained 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.

For the present invention, another executes the schematic flow sheet three of the data transmission method that example provides to Fig. 3 in fact.

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 present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on embodiments of the invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to protection scope of the present invention.

Embodiment one

The embodiment of the present invention provides a kind of data transmission method, is applicable to subscriber equipment.Concrete, subscriber equipment receives the downlink data that the network equipment (as 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 base station.

In the data transmission method that the embodiment of the present invention provides, up-downgoing proportioning changes, subscriber equipment needs to know that up-downgoing proportioning changes the moment in advance, and the up-downgoing proportioning before and after changing, optionally, the network equipment can pass through proprietary RRC (Radio Resource Control, wireless heterogeneous networks) signaling is before up-downgoing proportioning changes, up-downgoing proportioning is changed the moment, and the up-downgoing proportioning notifying user equipment before and after changing, certainly, also other method can be passed through, as carried out notifying user equipment by broadcast or physical layer signaling.Thus subscriber equipment can be clear and definite when to network equipment feeding back uplink response message, thus realize seamlessly transitting of business.

In the data transmission method that the embodiment of the present invention provides, change for up-downgoing proportioning, define the timing relationship between downlink data transmission to up response message feedback: the sub-frame of uplink sending up response message is first sub-frame of uplink meeting time threshold between the subframe of downlink data transmission, visible, in time threshold, subscriber equipment at least will can complete the reception of downlink data and whether generate corresponding up response message according to correct reception.Usually, subscriber equipment completes downlink data and receives and generate the time required for up response message, relevant with the disposal ability of device.For the TDD system of LTE, after consideration device disposal ability, described time threshold is set to 4ms, i.e. 4 subframes.

Below in two kinds of situation, the timing relationship between downlink data transmission to up response message feedback in the data transmission method of the embodiment of the present invention is described in detail.

(1) the first situation:

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

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

Table 2 illustrate the descending sub frame of the transmitting downlink data that up-downgoing proportioning defines or special subframe and feed back described downlink data response message sub-frame of uplink between the time interval:

Wherein, the subframe of subframe index instruction is the sub-frame of uplink for feeding back uplink response message, subframe index and up-downgoing proportioning indicate obtained numeral jointly, the descending sub frame of a transmitting downlink data that each numeral is corresponding or special subframe, concrete, corresponding descending sub frame or special subframe are from the sub-frame of uplink of feeding back uplink response message, forward number and that subframe obtained after the subframe of the digital corresponding number of value provided.As for up-downgoing proportioning 2, corresponding 4 numerals of subframe 28,7,4,6}, 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, during owing to being 1 according to the up-downgoing proportioning of the first radio frames, the downlink data transmission of the up-downgoing proportioning definition of the first radio frames feed back to up response message between timing relationship (see table 2), occur in the downlink data transmission of subframe 5 in the first radio frames, subframe 6 and subframe 9, up response message cannot in the first radio frames feedback.Therefore, the data transmission method that the embodiment of the present invention provides, for the downlink data transmission of subframe 5, subframe 6 and subframe 9 in the first radio frames, subscriber equipment feeds back corresponding up response message in the subframe 2 of the second radio frames, subframe 2 and subframe 7 respectively, namely, subscriber equipment uses and subframe 5 in the first radio frames, meets first sub-frame of uplink that time threshold (4ms) requires send up response message between subframe 6 and subframe 9.

Simultaneously, as shown in Figure 9, during owing to being 1 according to the up-downgoing proportioning of the first radio frames, timing relationship (see table 2) between the downlink data transmission defined according to the up-downgoing proportioning of the first radio frames in prior art to up response message feedback, for occurring in subframe 0 in the first radio frames, downlink data transmission in subframe 1 and subframe 4, up response message can in the first radio frames feedback, as corresponding up response message can be fed back in the subframe 7 of the first radio frames and subframe 8, then subscriber equipment is respectively in the subframe 7 of the first radio frames, subframe 7 and subframe 8 feed back corresponding up response message.

Simultaneously, for the downlink data transmission occurred in the second radio frames, if the up-downgoing proportioning that the second radio frames radio frames below does not change, the timing relationship that so can define according to the up-downgoing proportioning for the second radio frames comes at corresponding sub-frame of uplink feeding back uplink response message; If the second radio frames radio frames below changes up-downgoing proportioning, the data transmission method that so can provide according to the embodiment of the present invention comes at corresponding sub-frame of uplink feeding back uplink response message.

Exemplary, as shown in Figure 10, the up-downgoing proportioning of the first radio frames to be the up-downgoing proportioning of the 2, second radio frames be the 1, first radio frames is to the second radio frames, and up-downgoing proportioning changes.During owing to being 2 according to the up-downgoing proportioning of the first radio frames, timing relationship between feeding back to up response message according to the downlink data transmission of the first radio frames definition in prior art, occur in the downlink data transmission of subframe 4 in the first radio frames, subframe 5, subframe 6, subframe 8 and subframe 9, up response message cannot in the first radio frames feedback.Therefore, the data transmission method that the embodiment of the present invention provides, for the downlink data transmission of 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 the subframe 2 of the second radio frames, subframe 2, subframe 2, subframe 2 and subframe 3 respectively, namely, subscriber equipment uses and subframe 4, subframe 5 and subframe 6 in the first radio frames, meets first sub-frame of uplink that time threshold (4ms) requires send up response message between subframe 8 and subframe 9.

Simultaneously, as shown in Figure 10, during owing to being 2 according to the up-downgoing proportioning of the first radio frames, timing relationship between the downlink data transmission defined according to the up-downgoing proportioning of the first radio frames in prior art to up response message feedback, for the downlink data transmission occurred in subframe 0 in the first radio frames, subframe 1 and subframe 3, up response message can in the first radio frames feedback, as fed 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 all contains only a radio frames, and as is illustrated by figs. 11 and 12, the first radio frames and the second radio frames also can comprise and be greater than a radio frames.

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

During owing to being 5 according to the up-downgoing proportioning of the first radio frames, timing relationship between the downlink data transmission defined according to the up-downgoing proportioning of the first radio frames in prior art to up response message feedback, occur in the downlink data transmission of subframe 8 in first radio frames that the first radio frames comprises, subframe 2 feeding back uplink response message in second radio frames that can comprise in the first radio frames.Occur in the downlink data transmission of subframe 0, subframe 1, subframe 3-subframe 8 and subframe 9 in second radio frames that in first radio frames that the first radio frames comprises, subframe 9, first radio frames comprises, up response message cannot in the first radio frames feedback.Therefore, the data transmission method that the embodiment of the present invention provides, for the downlink data transmission of subframe 0, subframe 1, subframe 3-subframe 8 and subframe 9 in second radio frames comprised in the first radio frames, subscriber equipment feeds back corresponding up response message in the subframe 2 of the second radio frames, subframe 2, subframe 2, subframe 2, subframe 2, subframe 2, subframe 2, subframe 2, subframe 2 and subframe 8 respectively.

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

During owing to being 2 according to the up-downgoing proportioning of the first radio frames, timing relationship between the downlink data transmission defined according to the up-downgoing proportioning of the first radio frames in prior art to up response message feedback, occur in the downlink data transmission of subframe 0 in the first radio frames, subframe 1 and subframe 3, can in the first radio frames subframe 7 feeding back uplink response message.Occur in the downlink data transmission of subframe 4 in the first radio frames, subframe 5, subframe 6, subframe 8 and subframe 9, up response message cannot in the first radio frames feedback.Therefore, the data transmission method that the embodiment of the present 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 subframe 2 of second radio frames that the subframe 2 of first radio frames that subscriber equipment comprises in the second radio frames respectively, subframe 2, subframe 2, subframe 2 and the second radio frames comprise feeds back corresponding up response message.

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

In the data transmission method that the embodiment of the present invention provides, for the transfer of data occurring in descending sub frame A, if the up response message of its correspondence sends at sub-frame of uplink B, so title descending sub frame A is the association descending sub frame of sub-frame of uplink B.All descending sub frames that associates associated with sub-frame of uplink B constitute one and descendingly associate sub-frame set.

In the TDD system of LTE, as shown in table 2, give the descending sub frame of the transmitting downlink data defined for often kind of up-downgoing proportioning or special subframe and feed back described downlink data response message sub-frame of uplink between the time interval, namely the first timing relationship in the embodiment of the present invention, particularly, numeral gives the number of sub-frames at interval.This table 2 can be stored in advance in base station and subscriber equipment.

As shown in table 2, for up-downgoing proportioning 2, corresponding 4 numerals of subframe 28,7,4,6}, association descending sub frames corresponding to these 4 numerals are respectively subframe 4, subframe 5, subframe 8 and subframe 6, and namely the association descending sub frame set of subframe 2 correspondence is { subframe 4, subframe 5, subframe 8 and subframe 6}.

For the timing relationship provided in all embodiments provided by the invention, can define according to the form shown in similar table 2, and can be stored in advance in base station and subscriber equipment.

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

Exemplary, as shown in Figure 9, for the subframe 2 in the second radio frames, timing relationship between feeding back to up response message according to the downlink data transmission of embodiment of the present invention definition, the subframe 2 of the second radio frames only needs the up response message of feedback 2 descending sub frames, and the descending sub frame set that associates associated 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 feedback second radio frames subframe 0, the up response message of the second radio frames subframe 1 and the second radio frames subframe 3, and, timing relationship between feeding back to up response message according to the downlink data transmission of embodiment of the present invention definition, the subframe 7 of the second radio frames also needs the up response message of feedback first radio frames subframe 9, visible, the descending sub frame set that associates associated with the subframe 7 in the second radio frames comprises the first radio frames subframe 9, second radio frames subframe 0, second radio frames subframe 1 and the second radio frames subframe 3.

Before data is transmitted, the network equipment first sends scheduling authorization order to subscriber equipment, contains descending distribution indication field in scheduling authorization order, for the number of dispatching to subscriber equipment indicating downlink.In the TDD system of LTE, descending distribution indication field is arranged in the set of each association descending sub frame, particularly, descending distribution indication field indicates till present sub-frame, to the scheduling authorization order number for dispatching downlink transfer of data that subscriber equipment sends.

For Fig. 9, in the first radio frames, what subframe 5 and subframe 6 constituted the second radio frames subframe 2 associates descending sub frame set, and descending distribution indication field is arranged by existing rule in these two subframes.Such as, when have sent the scheduling authorization order of dispatching downlink transfer of data respectively in the subframe 5 of the first radio frames and subframe 6, arranging descending distribution indication field value respectively in the scheduling authorization order that can send in subframe 5 and subframe 6 is 1 and 2.

In the data transmission method that the embodiment of the present invention provides, for the downlink data transmission occurring in the first radio frames and the second radio frames, timing relationship between the downlink data transmission provided by the embodiment of the present invention to up response message feedback, can obtain the sub-frame of uplink of feeding back uplink response message.Consider feeding back uplink response message identical sub-frame of uplink has multiple subscriber equipment while, need for this multiple subscriber equipment distributes different up responder link resources respectively.

In the TDD system of LTE, be each descending sub frame of sub-frame of uplink association, be assigned with one and map label m, particularly, each association descending sub frame is determined by the numeral sequence in table 2 of its correspondence.For up-downgoing proportioning 2, the association descending sub frame set of subframe 2 correspondence is { subframe 4, subframe 5, subframe 8 and subframe 6}, when so obtaining up responder link resource in subframe 2, map label m=0, m=1, m=2 and m=3 for subframe 4, subframe 5, subframe 8 and subframe 6 are assigned with respectively.For the downlink data sent at association descending sub frame A, base station also can send scheduling authorization order to subscriber equipment at association descending sub frame A, the first receiving scheduling authorization command of subscriber equipment, then downlink data receiving.According to control channel unit (Control Channel Element, CCE) the index n that scheduling authorization order takies _cCEbe descending associate subframe A distribute mapping label m, subscriber equipment and base station can calculate obtain up responder link resource index

Detailed process is as follows: first from { selecting a p value in 0,1,2,3}, making N _p≤ n _cCE< N _p+1; Through type the responder link resource index obtaining and distribute can be calculated, wherein for downlink system bandwidth, M is the number of the association descending sub frame of sub-frame of uplink B, for a deviant of network equipment broadcast announcement.At sub-frame of uplink B, subscriber equipment uses the up responder link resource feeding back uplink response message calculating and obtain, and base station uses and calculates the up response message that the up responder link resource obtained receives subscriber equipment feedback.

In the data transmission method that the embodiment of the present invention provides, for the sub-frame of uplink in the second radio frames, timing relationship the downlink data transmission that its association descending sub frame number and the set of association descending sub frame are defined by the embodiment of the present invention to up response message feedback is determined, and carrys out allocation map label m according to the sequence of association descending sub frame set to each association descending sub frame.According to the CCE index N that scheduling authorization order takies _cCEbe the descending mapping label m associating subframe A and distribute, subscriber equipment and base station can calculate according to method noted earlier and obtain up responder link resource index for Fig. 9, the association descending sub frame set of the second radio frames subframe 2 is { the first radio frames subframe 5, first radio frames subframe 6} or { the first radio frames subframe 6, first radio frames subframe 5}, so can be respectively the first radio frames subframe 5 and the first radio frames subframe 6 allocation map label m=0 and m=1, or allocation map label m=1 and m=0.

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

Embodiment two

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

In the data transmission method of the embodiment of the present invention, up-downgoing proportioning changes, subscriber equipment needs to know that up-downgoing proportioning changes the moment in advance, and the up-downgoing proportioning before and after changing, optionally, the network equipment can by proprietary RRC signaling before up-downgoing proportioning changes, up-downgoing proportioning is changed the moment, and the up-downgoing proportioning notifying user equipment before and after changing, certainly, also other method can be passed through, as carried out notifying user equipment by broadcast or physical layer signaling.Thus subscriber equipment can be clear and definite when to network equipment feeding back uplink response message, thus realize seamlessly transitting of business.

In the data transmission method of the embodiment of the present invention, change for up-downgoing proportioning, define the timing relationship between transmitting uplink data to descending response message feedback: the descending sub frame or the special subframe that send descending response message are the descending sub frame or the special subframe that meet time threshold between the subframe of transmitting uplink data, visible, in time threshold, the network equipment at least will can complete the reception of upstream data and whether generate corresponding descending response message according to correct reception.Usually, the network equipment completes upstream data and receives and generate the time required for descending response message, 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 needs to receive the upstream data of all subscriber equipmenies and generates corresponding descending response message, and subscriber equipment only needs to receive one's own downlink data and generates up response message.For the TDD system of LTE, after consideration device disposal ability, described time threshold is 4ms, i.e. 4 subframes.

In the data transmission method of the embodiment of the present invention, up-downgoing proportioning changes, and defines descending response message and feeds back to timing relationship between uplink data retransmission: the sub-frame of uplink of uplink data retransmission is and sends first sub-frame of uplink meeting time threshold between the descending sub frame of descending response message or special subframe.

Divide three kinds of situations below, describe timing relationship between the subframe of feeding back downlink response message in the data transmission method of the embodiment of the present invention and the subframe of transmitting uplink data in detail.

(1) the first situation:

First radio frames is to the second radio frames, 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, the sub-frame of uplink correspondence that only there is the first radio frames changes over the situation of the descending sub frame of the second radio frames.

In a first scenario, owing to only there is the situation being changed over descending sub frame by sub-frame of uplink, although the timing relationship defined according to the up-downgoing proportioning of the first radio frames in prior art, its descending response message does not feed back in the first radio frames; But according to timing relationship that subframe determined that the up-downgoing proportioning of the first radio frames defines, descending sub frame is remained in the second radio frames, thus the timing relationship that the timing relationship between described transmitting uplink data to descending response message still can define according to the up-downgoing proportioning for the first radio frames carries out, and the benefit done like this can avoid introducing new timing relationship.Namely in a first scenario, to described transmitting uplink data, timing relationship between the transmitting uplink data defined according to the up-downgoing proportioning for the first radio frames to descending response message, uses subframe that in the second radio frames, label is identical to send described descending response message.

In a first scenario, when described descending response message is for denying response message, receive the re-transmission of described upstream data, wherein, receive the subframe at described uplink data retransmission place, be send described descending response message place subframe after, meet first sub-frame of uplink of described time threshold requirement.

Exemplary, as shown in figure 13, up-downgoing proportioning 2 is changed to for up-downgoing proportioning 0, according to the timing relationship that the up-downgoing proportioning of the first radio frames in prior art defines, with the subframe 7 of the first radio frames, subframe 8 and descending response message corresponding to subframe 9 transmitting uplink data are respectively in the subframe 1 of next radio frames, subframe 5 and subframe 6 are fed back, thus in the embodiment of the present invention, the network equipment is also in the subframe 1 of the second radio frames, subframe 5 and subframe 6 feeding back downlink response message, 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, up-downgoing proportioning 1 is changed to for up-downgoing proportioning 0, according to the timing relationship that the up-downgoing proportioning of the first radio frames in prior art defines, with the subframe 7 of the first radio frames, subframe 8 and descending response message corresponding to subframe 9 transmitting uplink data are respectively in the subframe 1 of next radio frames, subframe 5 and subframe 6 are fed back, thus in the embodiment of the present invention, the network equipment is also in the subframe 1 of the second radio frames, subframe 5 and subframe 6 feeding back downlink response message, 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, up-downgoing proportioning 2 is changed to for up-downgoing proportioning 1, according to the timing relationship that the up-downgoing proportioning of the first radio frames in prior art defines, the descending response message corresponding with the subframe 7 of the first radio frames and subframe 8 transmitting uplink data feeds back in the subframe 1 of next radio frames, subframe 4 respectively, thus in the embodiment of the present invention, the network equipment is also at subframe 1, the subframe 4 feeding back downlink response message 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:

First radio frames is to the second radio frames, 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, the descending sub frame correspondence that only there is the first radio frames changes over the situation of the sub-frame of uplink of the second radio frames.

In the latter case, the situation of sub-frame of uplink is changed over owing to only there is descending sub frame, according to timing relationship that subframe determined that the up-downgoing proportioning of the first radio frames in prior art defines, may become sub-frame of uplink in the second radio frames, descending response message can not be sent.In the latter case, to described transmitting uplink data, sending the subframe of described descending response message, is meet first descending sub frame of described time threshold requirement across the sub-frames with the described transmitting uplink data of reception in the second radio frames.

In the latter case, when described descending response message is for denying response message, receive the re-transmission of described upstream data, wherein, receive the subframe at described uplink data retransmission place, be send described descending response message place subframe after, meet first sub-frame of uplink of 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 that the up-downgoing proportioning of the first radio frames in prior art defines, the descending response message corresponding with subframe 7 transmitting uplink data of the first radio frames, feeds back in the subframe 3 of next radio frames.But in next radio frames, according to the up-downgoing proportioning of the second radio frames, subframe 3 changes into sub-frame of uplink, can not send descending response message.Therefore, in embodiments of the present invention, timing relationship between feeding back to descending response message according to the transmitting uplink data of embodiment of the present invention definition, as shown in figure 16, to the transmitting uplink data occurred in the first radio frames subframe 7, the network equipment feeds back corresponding descending response message in the subframe 1 of the second radio frames, and, feed back to the timing relationship between uplink data retransmission according to the descending response message of embodiment of the present 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 that the up-downgoing proportioning of the first radio frames in prior art defines, the descending response message corresponding with subframe 7 transmitting uplink data of the first radio frames, feeds back in the subframe 3 of next radio frames.But in next radio frames, according to the up-downgoing proportioning of the second radio frames, subframe 3 changes into sub-frame of uplink, can not send descending response message.Therefore, in embodiments of the present invention, timing relationship between feeding back to descending response message according to the transmitting uplink data of embodiment of the present invention definition, to the transmitting uplink data occurred in the first radio frames subframe 7, the network equipment feeds back corresponding descending response message in the subframe 1 of the second radio frames, and, feed back to the timing relationship between uplink data retransmission according to the descending response message of embodiment of the present 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, timing relationship between feeding back to descending response message according to the transmitting uplink data of embodiment of the present invention definition, the descending response message corresponding with subframe 7 transmitting uplink data of the first radio frames, the network equipment feeds back corresponding descending response message in the subframe 1 of the second radio frames, and, the timing relationship between uplink data retransmission is fed back to according to the descending response message of embodiment of the present 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 feeds back corresponding descending response message in the subframe 5 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, timing relationship between feeding back to descending response message according to the transmitting uplink data of embodiment of the present invention definition, the descending response message corresponding with subframe 7 transmitting uplink data of the first radio frames, the network equipment feeds back corresponding descending response message in the subframe 1 of the second radio frames, and, the timing relationship between uplink data retransmission is fed back to according to the descending response message of embodiment of the present 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:

First radio frames is to the second radio frames, 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 the sub-frame of uplink correspondence that there is the first radio frames changes over the descending sub frame of the second radio frames, and the descending sub frame correspondence that also there is the first radio frames changes over the situation of the sub-frame of uplink of the second radio frames.

In a third case, to described transmitting uplink data, sending the subframe of described descending response message, is meet first descending sub frame of described time threshold requirement across the sub-frames with the described transmitting uplink data of reception in the second radio frames.

In a third case, when described descending response message is for denying response message, receive the re-transmission of described upstream data, wherein, receive the subframe at described uplink data retransmission place, be send described descending response message place subframe after, meet first sub-frame of uplink of described time threshold requirement.

Exemplary, as shown in figure 20, up-downgoing proportioning 4 changes to up-downgoing proportioning 2, according to the timing relationship that the up-downgoing proportioning of the first radio frames in prior art defines, the descending response message corresponding with subframe 2 transmitting uplink data of the first radio frames, the network equipment feeds back corresponding descending response message in the subframe 8 of the first radio frames, and, according to the embodiment of the present invention definition descending response message feed back to upstream data again transmit between timing relationship, 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, according to the timing relationship that the up-downgoing proportioning of the first radio frames in prior art defines, the descending response message corresponding with subframe 3 transmitting uplink data of the first radio frames, the network equipment feeds back corresponding descending response message in the subframe 9 of the first radio frames, and, according to the embodiment of the present invention definition descending response message feed back to upstream data again transmit between timing relationship, 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, according to the timing relationship that the up-downgoing proportioning of the first radio frames in prior art defines, the descending response message corresponding with subframe 2 transmitting uplink data of the first radio frames, the network equipment feeds back corresponding descending response message in the subframe 8 of the first radio frames, and, according to the embodiment of the present invention definition descending response message feed back to upstream data again transmit between timing relationship, 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, according to the timing relationship that the up-downgoing proportioning of the first radio frames in prior art defines, the descending response message corresponding with subframe 3 transmitting uplink data of the first radio frames, the network equipment feeds back corresponding descending response message in the subframe 9 of the first radio frames, and, according to the embodiment of the present invention definition descending response message feed back to upstream data again transmit between timing relationship, 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, timing relationship between feeding back to descending response message according to the transmitting uplink data of embodiment of the present invention definition, the descending response message corresponding with subframe 4 transmitting uplink data of the first radio frames, the network equipment feeds back corresponding descending response message in the subframe 0 of the second radio frames, and, according to the embodiment of the present invention definition descending response message feed back to upstream data again transmit between timing relationship, 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, according to the timing relationship that the up-downgoing proportioning of the first radio frames in prior art defines, the descending response message corresponding with subframe 2 transmitting uplink data of the first radio frames, the network equipment feeds back corresponding descending response message in the subframe 6 of the first radio frames, and, according to the embodiment of the present invention definition up-downgoing response message feed back to upstream data again transmit between timing relationship, 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, timing relationship between feeding back to descending response message according to the transmitting uplink data of embodiment of the present invention definition, the descending response message corresponding with subframe 7 transmitting uplink data of the first radio frames, the network equipment feeds back corresponding descending response message in the subframe 1 of the second radio frames.

Exemplary, as shown in figure 23, up-downgoing proportioning 1 changes to up-downgoing proportioning 3, according to the timing relationship that the up-downgoing proportioning of the first radio frames in prior art defines, the descending response message corresponding with subframe 2 transmitting uplink data of the first radio frames, the network equipment feeds back corresponding descending response message in the subframe 6 of the first radio frames, and, according to the embodiment of the present invention definition up-downgoing response message feed back to upstream data again transmit between timing relationship, 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, according to the timing relationship that the up-downgoing proportioning of the first radio frames in prior art defines, the descending response message corresponding with subframe 3 transmitting uplink data of the first radio frames, the network equipment feeds back corresponding descending response message in the subframe 9 of the first radio frames, and, timing relationship between feeding back to descending response message according to the transmitting uplink data of embodiment of the present 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 23, timing relationship between feeding back to descending response message according to the transmitting uplink data of embodiment of the present invention definition, the descending response message corresponding with subframe 7 transmitting uplink data of the first radio frames, the network equipment feeds back corresponding descending response message in the subframe 1 of the second radio frames;

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

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

But in the data transmission method of the embodiment of the present invention, radio frames generation up-downgoing proportioning changes, transmitting uplink data and re-transmission thereof may use 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 feeds back corresponding descending response message in the subframe 3 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 first HARQ process number passing upstream data of subframe 7 of the first radio frames is 2, and the HARQ process number retransmitting upstream data is 1, cannot carry out correct merging to the received signal according to HARQ process number.Therefore, the data transmission method that the embodiment of the present invention provides, the network equipment can just pass the timing relationship with uplink data retransmission according to upstream data, the first biography upstream data received and re-transmission upstream data are merged, to improve the receptivity of upstream data, no longer merge to the received signal according to HARQ process number.

Embodiment three

The embodiment of the present invention provides a kind of data transmission method, is applicable to subscriber equipment.Before data is transmitted, the network equipment first sends 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 present invention, change for up-downgoing proportioning, define subframe and the scheduling authorization order sending upstream data timing relationship across the sub-frames: scheduling authorization order place subframe is meet the nearest descending sub frame or special subframe that time threshold requires with the time interval of the sub-frame of uplink of transmission upstream data, visible, in described time threshold, subscriber equipment at least wants reception and the parsing that can complete scheduling authorization order.Usually, subscriber equipment completes the reception of scheduling authorization order and the time required for parsing, relevant with the disposal ability of device.For the TDD system of LTE, after consideration device disposal ability, described time threshold is 4ms, i.e. 4 subframes.

As shown in figure 25, up-downgoing proportioning 1 changes into up-downgoing proportioning 2, for in subframe 2 in the second radio frames send upstream data, according to the scheduling authorization order defined for up-downgoing proportioning 2 in prior art to the timing relationship between transmitting uplink data, its scheduling authorization order will receive in the subframe 8 of the subframe 8 of previous radio frames, i.e. the first radio frames, but according to the up-downgoing proportioning 1 of the first radio frames, first radio frames subframe 8 is sub-frame of uplink, cannot receiving scheduling authorization command.According to subframe and the scheduling authorization order of the transmission upstream data of embodiment of the present invention definition timing relationship across the sub-frames, to the upstream data of subframe 2 transmission 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 changes into up-downgoing proportioning 1, for in subframe 2 in the second radio frames send upstream data, according to the subframe of transmission upstream data of embodiment of the present invention definition and scheduling authorization order timing relationship across the sub-frames, subscriber equipment is in the subframe 8 receiving scheduling authorization command of the first radio frames.For in subframe 3 in the second radio frames send upstream data, according to the subframe of transmission upstream data of embodiment of the present invention definition and scheduling authorization order timing relationship across the sub-frames, 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 changes into up-downgoing proportioning 0, for in subframe 2 in the second radio frames send upstream data, according to the subframe of transmission upstream data of embodiment of the present invention definition and scheduling authorization order timing relationship across the sub-frames, subscriber equipment is in the subframe 8 receiving scheduling authorization command of the first radio frames.For in subframe 3 in the second radio frames send upstream data, according to the subframe of transmission upstream data of embodiment of the present invention definition and scheduling authorization order timing relationship across the sub-frames, 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 changes into up-downgoing proportioning 2, for in subframe 2 in the second radio frames send upstream data, according to the subframe of transmission upstream data of embodiment of the present invention definition and scheduling authorization order timing relationship across the sub-frames, 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 changes into up-downgoing proportioning 0, for in subframe 2 in the second radio frames send upstream data, according to the subframe of transmission upstream data of embodiment of the present invention definition and scheduling authorization order timing relationship across the sub-frames, subscriber equipment is in the subframe 6 receiving scheduling authorization command of the first radio frames.For in subframe 3 in the second radio frames send upstream data, according to the subframe of transmission upstream data of embodiment of the present invention definition and scheduling authorization order timing relationship across the sub-frames, subscriber equipment is in the subframe 6 receiving scheduling authorization command of the first radio frames.

As shown in figure 30, up-downgoing proportioning 1 is become for from up-downgoing proportioning 0, according to the subframe of transmission upstream data of embodiment of the present invention definition and scheduling authorization order timing relationship across the sub-frames, the upstream data sent in subframe 2 in second radio frames, subscriber equipment is in the subframe 6 receiving scheduling authorization command of the first radio frames, the upstream data sent in subframe 3 in 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 subframe 2 of the second radio frames and the transmitting uplink data of subframe 3 all receives in the subframe 6 of the first radio frames, so can be adjusted to: the upstream data sent in 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 sent in subframe 2 in the second radio frames, subscriber equipment in the subframe 5 of the first radio frames, as shown in phantom in Figure 30.Visible, when the second radio frames occurs that the scheduling authorization order of multiple sub-frame of uplink sends in the identical subframe of the first radio frames, can according to sub-frame of uplink order from back to front, in the first radio frames, find nearest, the secondary nearest descending sub frame or special subframe that meet time threshold requirement successively, send scheduling authorization order.

Still as shown in 30 dotted lines in figure, when the up-downgoing proportioning of the first radio frames is 0, according to the subframe of transmission upstream data of the first radio frames definition in prior art and scheduling authorization order timing relationship across the sub-frames, the upstream data sent in subframe 9 in first radio frames, subscriber equipment in the subframe 5 receiving scheduling authorization command of the first radio frames, by the subframe of transmission upstream data of embodiment of the present invention definition and scheduling authorization order the restriction of timing relationship across the sub-frames.

The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change 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 realized in above-described embodiment method, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in a computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.

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 meets 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 first radio frames, when determining to use the sub-frame of uplink in described first radio frames to feed back the response message of described downlink data, then in the described sub-frame of uplink of described 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 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 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 devices according to claim 10, is characterized in that, the described time interval meets time threshold requirement, comprising: described interval greater than or equal described time threshold.

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

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

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

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

Determining unit, for when using identical sub-frame of uplink to feed back the response message of the downlink data of multiple descending sub frame and/or special subframe, determines the sub-frame set that described multiple descending sub frame and/or special subframe are formed;

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

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

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

18. 1 kinds of data transmission methods, is characterized in that, comprising:

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

Described interval greater than or equal described time threshold.

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

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

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

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

Or, in the process of up-downgoing proportioning being changed to described second radio frames from the up-downgoing proportioning of described first radio frames, when at least one descending sub frame correspondence that there is described first radio frames is changed to the sub-frame of uplink of described second radio frames, time interval of the described sub-frame of uplink of described and described first radio frames meets descending sub frame that time threshold requires or special subframe is: meet with the time interval of the described sub-frame of uplink of described first radio frames first descending sub frame or special subframe that time threshold requires.

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

When the response message of described upstream data is non-determined NACK, meet first sub-frame of uplink that time threshold requires from the described descending sub frame of the response message with the described upstream data of described feedback or the time interval of described special subframe the described upstream data receiving described subscriber equipment and resend.

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

25. 1 kinds of data transmission devices, is characterized in that, comprising:

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

Described interval greater than or equal described time threshold.

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

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

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

Or, described transmitting element, also specifically in the process of up-downgoing proportioning being changed to described second radio frames from the up-downgoing proportioning of described first radio frames, when at least one the descending sub frame correspondence that there is described first radio frames is changed to the sub-frame of uplink of described second radio frames, time interval of the described sub-frame of uplink of described and described first radio frames meets descending sub frame that time threshold requires or special subframe is: meet with the time interval of the described sub-frame of uplink of described first radio frames first descending sub frame or special subframe that time threshold requires.

30. data transmission devices according to claim 25, it is characterized in that, described receiving element, also for when the response message of described upstream data is non-determined NACK, meet first sub-frame of uplink that time threshold requires from the described descending sub frame of the response message with the described upstream data of described feedback or the time interval of described special subframe the described upstream data receiving described subscriber equipment and resend.

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