CN108282274A

CN108282274A - data transmission method and device, terminal and base station

Info

Publication number: CN108282274A
Application number: CN201710011182.6A
Authority: CN
Inventors: 石靖; 夏树强; 梁春丽; 张雯; 韩祥辉; 任敏
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2017-01-06
Filing date: 2017-01-06
Publication date: 2018-07-13
Also published as: WO2018126948A1

Abstract

The present invention provides a kind of data transmission method and device, terminal and base station, wherein this method includes：During base station repeats to send and controls the down control channel of information for bearing downlink, the first predeterminable event is detected；After detecting first predeterminable event, which, which terminates, repeats to send the down control channel.Using above-mentioned technical proposal, when solving in the related technology using repeat transmission system promotion reliability, needs to solve the problems, such as while meeting ultralow time delay and ultrahigh reliability demand, realize the purpose for promoting reliability on the basis of meeting low time delay premise.

Description

Data transmission method and device, terminal and base station

Technical field

The present invention relates to the communications fields, in particular to a kind of data transmission method and device, terminal and base station.

Background technology

In the related art, with fourth generation mobile communication technology (the 4th Generation mobile Communication technology, referred to as 4G) long term evolution (LTE, Long-Term Evolution)/advanced long-term Commercial increasingly perfect of evolution (LTE-Advance/LTE-A, Long-Term Evolution Advance) system, to next Third-generation mobile communication technology i.e. the 5th third-generation mobile communication technology (the 5th Generation mobile communication Technology, referred to as 5G) technical requirement it is also higher and higher.In the industry it is believed that next generation mobile communication system Should have many characteristics, such as superelevation rate, ultra-high capacity, ultrahigh reliability and ultralow delay transport characteristic.For surpassing in 5G systems The index of low time delay ultrahigh reliability is that user plane time delay is 1ms while meeting 99.999% reliability at present.

In order to reach the demand of ultralow time delay and ultrahigh reliability, the reliability to control channel and Traffic Channel is needed to want It asks and is all promoted, existing way is to pass through multiple hybrid automatic repeat-request (Hybird Automatic Repeat ReQuest, referred to as HARQ) it retransmits and realizes, but multiple HARQ re-transmissions may directly result in ultralow time delay and be unsatisfactory for demand, Even if therefore under conditions of retransmitting promotion reliability using HARQ, number of retransmissions is limited.Other promote the side of reliability Method also has：Reduce transport block size under conditions of using same asset, increases under conditions of using identical traffic block size The resource used repeats transmission by time domain energy similar to improving performance, power ascension etc..

In LTE system, the improving performance by the way of repeating to transmit, passes through down control channel (Physical Downlink Control Channel, referred to as PDCCH) it repeats to transmit to repeat to transmit with Traffic Channel and carrys out improving performance.It adopts With fixed scheduling timing and feedback timing, the identical downstream grants of content are carried by the Physical Downlink Control Channel repeatedly transmitted (DL grant) scheduling after the end subframe for repeating transmission repeats the physical down data traffic channels (Physical of transmission Downlink Shared Channel, referred to as PDSCH).It is identical by the Physical Downlink Control Channel carrying content repeatedly transmitted Uplink authorization (UL grant) repeat transmission ends subframe after scheduling repeat transmit physical uplink data traffic channels (Physical Uplink Shared Channel, referred to as PUSCH).It can if this method is used to that in 5G systems height can be met It is required by property but ultralow time delay demand may be cannot be satisfied.

For in the related technology, when promoting reliability using repeat transmission system, needs to solve while meeting ultralow time delay The problem of with ultrahigh reliability demand, there is presently no effective solution modes.

Invention content

An embodiment of the present invention provides a kind of data transmission method and device, terminal and base station, at least to solve related skill When promoting reliability using repeat transmission system in art, need to solve while meeting asking for ultralow time delay and ultrahigh reliability demand Topic.

According to one embodiment of present invention, a kind of data transmission method is provided, including：

During base station repeats to send and controls the down control channel of information for bearing downlink, the first default thing is detected Part；

After detecting first predeterminable event, the base station, which terminates, to be repeated to send the down control channel.

Optionally, after detecting first predeterminable event, the base station, which terminates, repeats to send the downlink control Channel, including at least one of：In the feedback information for receiving the downlink traffic channel scheduled in the Downlink Control Information Later, stop sending the down control channel；Receive the reverse link traffic channel scheduled in the down control channel it Afterwards, stop sending the down control channel；It is more than default in the repetition transmission times for repeating to send the down control channel When value X, stop sending the down control channel, wherein the X is positive integer.

Optionally, the transmission initial time unit of the downlink traffic channel of the down control channel scheduling is：With repetition The initial time unit for sending the down control channel is identical, wherein the time quantum is one of the following：Subframe Subframe, Transmission Time Interval TTI, slot s lot, mini-slot mini-slot.Optionally, subframe length is 1ms, packet Containing 1 or several slot.Slot length includes 6 or 7 or 8 or 12 or 14 or 16 OFDM symbols.If in Slot comprising 1 or Dry mini-slot, mini-slot include 2 or 3 or 4 or 7 or 8 symbols.TTI is 1 or several subframe or slot Or mini-slot.Wherein OFDM symbol can be a kind or several subcarrier spacings.

Optionally, the downlink traffic channel repeats to send since the initial time unit, terminates and repeats to send institute The method for stating downlink traffic channel includes at least one of：It is to the feedback information of the downlink traffic channel receiving After ACK, stop repeating to send the downlink traffic channel；It is super in the repetition transmission times for repeating to send the downlink traffic channel When crossing preset value Y.

Optionally, the value of the X and/or Y is one of the following：Predefined single value；It is determined according to TTI length Value；The base station is indicated by physical layer signaling or the value of high-level signaling configuration.

Optionally, detect whether the base station receives the anti-of downlink traffic channel scheduled in the Downlink Control Information The mode of feedforward information includes at least one of：After the initial time unit n for repeating to transmit the downlink traffic channel Time quantum n+k starts, and each time quantum is detected, wherein the k is the integer more than 0；Described in repetition transmission Time quantum n+k after the initial time unit n of downlink traffic channel starts, and is detected per M time quantum, In, the k is the integer more than 0, and the value of the M is what preset or base station configured；The lower industry is transmitted from repetition It is engaged in being detected in the time quantum for meeting l mod C=0 after the initial time unit n of channel, wherein the l is Time quantum indexes, and the value of the C is what preset or base station configured.Optionally, k values be set 0,1,2,3,4,5, At least one of 6,8 }.Optionally, M values are at least one of set { 1,2,3,4,5,6,7,8 }.Optionally, C values are collection It closes at least one of { 1,2,3,4,5,6,7,8 }.

Optionally, the Downlink Control Information for repeating the down control channel sent carrying is in each time quantum： The identical Downlink Control Information of content or partial bit domain content are different, wherein the different bit field of content include with It is at least one lower：Redundancy versions, modulation coding scheme.

Optionally it is determined that the mode of the redundancy versions in the downlink traffic channel includes at least one of：According to weight The identical redundancy versions for the down control channel instruction transmitted again determine that the downlink traffic channel for repeating transmission is equal Use the redundancy versions；It is true according to the not exactly the same redundancy versions difference for the down control channel instruction for repeating transmission The redundancy versions of downlink traffic channel scheduled in fixed each down control channel, and repeat to transmit the downlink control terminating After channel processed, redundancy versions that the downlink traffic channel is indicated using last time by the down control channel；Root Each downlink control letter is determined respectively according to the not exactly the same redundancy versions for the down control channel instruction for repeating transmission The redundancy versions of downlink traffic channel scheduled in road, and after terminating repetition and transmitting the down control channel, it is described Downlink traffic channel recycles initial using the redundancy versions that last time is indicated by the down control channel as redundancy versions Value, wherein the redundancy versions cycle is what preset or base station configured.

Optionally, the down control channel for repeating to send, which is specified in downlink data region in PRB, repeats to pass It is defeated, wherein the specified PRB resources are configured by base station by high-level signaling.

According to another embodiment of the invention, a kind of data transmission method is additionally provided, the method includes：In terminal It repeats during receiving the down control channel for carrying Downlink Control Information, detects the second predeterminable event；It is described detecting After second predeterminable event, the terminal, which terminates, to be repeated to receive the down control channel.

Optionally, after detecting second predeterminable event, the terminal, which terminates, repeats to receive the downlink control Channel, including at least one of：The feedback letter of the downlink traffic channel of the down control channel scheduling transmitted and received Before breath, repeat to receive the down control channel for dispatching the downlink traffic channel；The downlink control transmitted and received Before the reverse link traffic channel of channel dispatch processed, repeat to receive the down control channel for dispatching the reverse link traffic channel； Repetition receives the down control channel until the number for repeating to receive reaches preset value X.

Optionally, the initial time unit of the downlink traffic channel of the down control channel scheduling of reception is：With connect The time quantum for receiving the first down control channel in the down control channel of repetition transmission is identical, wherein when described Between unit be one of the following：Subframe subframe, Transmission Time Interval TTI, slot s lot, mini-slot mini-slot.

Optionally, the downlink traffic channel since initial time unit repeat receive, terminate repeat receive it is described under The method of row Traffic Channel includes at least one of：Receiving, the downlink traffic channel is correct, and sends to the downlink After the feedback information of Traffic Channel is ACK, stop receiving the downlink traffic channel；It is repeating to receive the downlink business letter When the number in road is more than preset value Y, stop receiving the downlink traffic channel.

Optionally, X the and/or Y values are one of the following：Predefined single value；It is taken according to what TTI length determined Value；Base station is indicated by physical layer signaling or the value of high-level signaling configuration.

Optionally, the mode for sending the feedback information includes at least one of：From the downlink for repeating to receive Time quantum n+k after the initial time unit n of Traffic Channel starts, and each time quantum sends the feedback information, Wherein, the k is the integer more than 0；From after the initial time unit n of the downlink traffic channel for repeating to receive when Between unit n+k start, send the feedback information per M time quantum, wherein the value of the M is preset or base station Configuration；From after the initial time unit n of downlink traffic channel for repeating to receive in the time for meeting l mod C=0 Unit sends the feedback information, wherein the l indexes for time quantum, and the value of the C is that preset or base station configures 's.

Optionally, the Downlink Control Information for repeating the down control channel received carrying is in each time quantum： The identical Downlink Control Information of content or partial bit domain content are different, wherein the different bit field of content includes following At least one：Redundancy versions, modulation coding scheme.

Optionally it is determined that the mode of the redundancy versions in the reverse link traffic channel of the terminal includes at least one of： It is determined according to the identical redundancy versions for the down control channel instruction for repeating transmission, repeats the downlink business of transmission Channel uses the redundancy versions；According to the not exactly the same redundancy versions for the down control channel instruction for repeating transmission The redundancy versions of the reverse link traffic channel scheduled in each down control channel are determined respectively, and receive the downlink terminating After control channel, redundancy versions that the reverse link traffic channel is indicated using last time by the down control channel； Each down control channel is determined according to the not exactly the same redundancy versions for the down control channel instruction for repeating transmission The redundancy versions of scheduled reverse link traffic channel, and terminate repeat receive the down control channel after, it is described on The initial value that row Traffic Channel is recycled by the redundancy versions that the down control channel indicates as redundancy versions using last time, Wherein, the redundancy versions cycle is what preset or base station configured.

Optionally, when determining the transmission starting of the reverse link traffic channel of the down control channel scheduling in the following manner Between unit be：Determine that sending time unit, wherein time quantum n receive for the first time according to uplink scheduling timing relationship n+k Repeat the time quantum of the down control channel of transmission, wherein the k is integer more than 0, wherein the time quantum is Following one：Subframe subframe, Transmission Time Interval TTI, slot s lot, mini-slot mini-slot.

Optionally, the down control channel for repeating to receive, which is specified in downlink data region in PRB, repeats to transmit, In, the specified PRB resources are configured by base station by high-level signaling.

According to another embodiment of the invention, a kind of data transmission device is provided, base station, described device packet are applied to It includes：

Transmission module is repeated, the down control channel process for being used for bearing downlink and controlling information is sent for being repeated in base station In, detect the first predeterminable event；

First terminates module, repeats to send the downlink control for after detecting first predeterminable event, terminating Channel processed.

Optionally, the first termination module is additionally operable at least one following situations：Receiving the downlink control letter After the feedback information of the scheduled downlink traffic channel of breath, stop sending the down control channel；Receive it is described under After reverse link traffic channel scheduled in row control channel, stop sending the down control channel；Repeat send it is described under When the repetition transmission times of row control channel is more than preset value X, stop sending the down control channel, wherein the X is just Integer.

Optionally, the transmission for repeating the downlink traffic channel that transmission module sends the down control channel scheduling rises Beginning time quantum is：It is identical as the initial time unit of the down control channel is repeatedly sent, wherein the time quantum is Following one：Subframe subframe, Transmission Time Interval TTI, slot s lot, mini-slot mini-slot.

Optionally, the transmission module that repeats is additionally operable to repeat to send the lower industry since the initial time unit Business channel, the first termination module are additionally operable to terminate at least one following situations and repeat to send the downlink traffic channel： After receiving the feedback information to the downlink traffic channel and being ACK, stop repeating to send the downlink traffic channel；In weight When recurrence send the repetition transmission times of the downlink traffic channel to be more than preset value Y.

According to another embodiment of the invention, a kind of data transmission device is provided, terminal, described device packet are applied to It includes：

Receiving module is repeated, the down control channel process for carrying Downlink Control Information is received for being repeated in terminal In, detect the second predeterminable event；

Second terminates module, repeats to receive the downlink control for after detecting second predeterminable event, terminating Channel processed.

Optionally, the second termination module is additionally operable to terminate at least one following situations and repeats to receive the downlink control Channel processed：

Before the feedback information of the downlink traffic channel of the down control channel scheduling transmitted and received, repeat to receive Dispatch the down control channel of the downlink traffic channel；

Before the reverse link traffic channel of the down control channel scheduling transmitted and received, repeats to receive and dispatch on described The down control channel of row Traffic Channel；

Repetition receives the down control channel until the number for repeating to receive reaches preset value X.

Optionally, when the starting for repeating the downlink traffic channel that receiving module receives the down control channel scheduling Between unit be：

It is identical as the time quantum of first down control channel in the down control channel for receiving repetition transmission, Wherein, the time quantum is one of the following：Subframe subframe, Transmission Time Interval TTI, slot s lot, mini-slot mini- slot。

Optionally, the repetition, which receives, is additionally operable to repeat to receive the downlink traffic channel since initial time unit, The second termination module is additionally operable to terminate at least one following situations and repeats to receive the downlink traffic channel：

Receiving, the downlink traffic channel is correct, and send to the feedback information of the downlink traffic channel be ACK it Afterwards, stop receiving the downlink traffic channel；

When the number for repeatedly receiving the downlink traffic channel is more than preset value Y, stop receiving the downlink business letter Road.

According to another embodiment of the invention, a kind of base station is additionally provided, the base station includes：

First communication device sends the down control channel for bearing downlink information for repeating, and is receiving the After first termination signal of one processor, terminates and repeat to send the down control channel；

The first processor, for repeating to send the down control channel process for bearing downlink control information In, the first predeterminable event is detected, and after detecting first predeterminable event, described in first communication device transmission First termination signal.

Optionally, the first processor is additionally operable to send institute to the first communication device at least one of situation State the first termination signal：

After the feedback information for receiving the downlink traffic channel scheduled in the Downlink Control Information；

After receiving the reverse link traffic channel scheduled in the down control channel；

When the repetition transmission times for repeatedly sending the down control channel is more than preset value X, wherein the X is just Integer.

Optionally, the first communication device is additionally operable to repeat to send the downlink business letter of the down control channel scheduling Road, wherein the transmission initial time unit of the downlink traffic channel is：

It is identical as repeating to send the initial time unit of the down control channel, wherein the time quantum be it is following it One：Subframe subframe, Transmission Time Interval TTI, slot s lot, mini-slot mini-slot.

Optionally, the first communication device is additionally operable to repeat to send the lower industry since the initial time unit Business channel, the first processor are additionally operable to notify the first communication device terminates to repeat to send at least one following situations The downlink traffic channel：

After receiving the feedback information to the downlink traffic channel and being ACK, stop repeating to send the downlink business Channel；

When the repetition transmission times for repeatedly sending the downlink traffic channel is more than preset value Y.

According to another embodiment of the invention, a kind of terminal is additionally provided, the terminal includes：

Secondary communication device receives the down control channel for carrying Downlink Control Information for repeating, and is receiving After second termination signal of second processor, terminates and repeat to receive the down control channel；

Second processor, for repeat receive the down control channel during, detect the second predeterminable event, and After detecting second predeterminable event, second termination signal is sent to the secondary communication device.

Optionally, the second processor is additionally operable to send institute to the secondary communication device at least one of situation State the second termination signal：

After the feedback information of the downlink traffic channel of the down control channel scheduling transmitted and received；

After the reverse link traffic channel of the down control channel scheduling transmitted and received；

Optionally, the secondary communication device is additionally operable to repeat to receive the downlink business letter of the down control channel scheduling Road, wherein the initial time unit of the downlink traffic channel of reception is：

Optionally, the secondary communication device is additionally operable to repeat to receive the lower industry since the initial time unit Business channel, the second processor are additionally operable to notify the secondary communication device terminates to repeat to receive at least one following situations The downlink traffic channel：

Through the invention, base station is during repeating to send the down control channel for bearing downlink control information, inspection The first predeterminable event is measured, base station, which terminates, to be repeated to send the down control channel.It solves in the related technology using weight When multiple transmission mode promotes reliability, needs to solve the problems, such as while meeting ultralow time delay and ultrahigh reliability demand, realize The purpose of reliability is promoted on the basis of meeting low time delay premise.

Description of the drawings

Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：

Fig. 1 is a kind of flow chart one of data transmission method according to the ... of the embodiment of the present invention；

Fig. 2 is a kind of flowchart 2 of data transmission method according to the ... of the embodiment of the present invention；

Fig. 3 is the schematic diagram of according to specific embodiment 1 dispatching downlink Data duplication transmission；

Fig. 4 is the schematic diagram of according to specific embodiment 2 dispatching uplink Data duplication transmission；

Fig. 5 is the schematic diagram of according to specific embodiment 3 dispatching downlink Data duplication transmission；

Fig. 6 is the schematic diagram of according to specific embodiment 4 dispatching uplink Data duplication transmission；

Fig. 7 is a kind of hardware block diagram of base station according to the ... of the embodiment of the present invention；

Fig. 8 is a kind of hardware block diagram of terminal according to the ... of the embodiment of the present invention.

Specific implementation mode

Come that the present invention will be described in detail below with reference to attached drawing and in conjunction with the embodiments.It should be noted that not conflicting In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.

It should be noted that term " first " in description and claims of this specification and above-mentioned attached drawing, " Two " etc. be for distinguishing similar object, without being used to describe specific sequence or precedence.

Embodiment one

A kind of mobile communications network (including but not limited to 5G mobile communications networks), the net are provided in the embodiment of the present application The network architecture of network may include network side equipment (such as base station) and terminal.One kind is provided in the present embodiment to can run on Information transferring method in the above-mentioned network architecture, it should be noted that the above- mentioned information transmission side provided in the embodiment of the present application The running environment of method is not limited to the above-mentioned network architecture.

A kind of data transmission method running on the above-mentioned network architecture is provided in the present embodiment, and Fig. 1 is according to this hair The flow chart one of a kind of data transmission method of bright embodiment, as shown in Figure 1, the flow includes the following steps：

Step S102, during base station repeats to send and controls the down control channel of information for bearing downlink, detection First predeterminable event；

Step S104, after detecting first predeterminable event, which, which terminates, repeats to send the down control channel.

Through the above steps, base station repeat send for bearing downlink control information down control channel during, Detect the first predeterminable event, base station, which terminates, to be repeated to send the down control channel.It solves and uses in the related technology It when repeat transmission system promotes reliability, needs to solve the problems, such as while meeting ultralow time delay and ultrahigh reliability demand, realize The purpose of reliability is promoted meet low time delay premise on the basis of.

Optionally, after detecting first predeterminable event, which, which terminates, repeats to send the down control channel, wraps Include at least one of：After the feedback information for receiving the downlink traffic channel scheduled in the Downlink Control Information, stop Send the down control channel；After receiving the reverse link traffic channel scheduled in the down control channel, stops sending and be somebody's turn to do Down control channel；When the repetition transmission times for repeatedly sending the down control channel is more than preset value X, stop sending under this Row control channel, wherein the X is positive integer.You need to add is that the feedback information in above-described embodiment can be confirmed (ACKnowledgment, referred to as ACK) or negative acknowledge (Negative ACKnowledgment, referred to as NACK).

Optionally, the transmission initial time unit of the downlink traffic channel of down control channel scheduling is：It is sent out with repetition Give the initial time unit of the down control channel identical, wherein the time quantum is one of the following：Subframe subframe, transmission Time interval (Transmission Time Interval, referred to as TTI), slot s lot, mini-slot mini-slot.

Optionally, which repeats to send since the initial time unit, terminates and repeats to send the downlink The method of Traffic Channel includes at least one of：After receiving the feedback information to the downlink traffic channel and being ACK, stop Repetition sends the downlink traffic channel；When the repetition transmission times for repeatedly sending the downlink traffic channel is more than preset value Y.

Optionally, the value of the X and/or Y is one of the following：Predefined single value；It is taken according to what TTI length determined Value；The base station is indicated by physical layer signaling or the value of high-level signaling configuration.

Optionally, the feedback letter for the downlink traffic channel whether base station receives scheduled in the Downlink Control Information is detected The mode of breath includes at least one of：It is single from the time after the initial time unit n for repeating to transmit the downlink traffic channel First n+k starts, and each time quantum is detected, wherein the k is the integer more than 0；Downlink business letter is transmitted from repetition Time quantum n+k after the initial time unit n in road starts, and is detected per M time quantum, wherein the k for more than The value of 0 integer, the M is what preset or base station configured；The initial time list of the downlink traffic channel is transmitted from repetition Being detected in the time quantum for meeting l mod C=0 after first n, wherein the l indexes for time quantum, and the C's takes Value is what preset or base station configured.

Optionally, the Downlink Control Information of the down control channel carrying of repetition transmission is in each time quantum：It is interior Hold identical Downlink Control Information or partial bit domain content is different, wherein the different bit field of content includes following At least one：Redundancy versions, modulation coding scheme.

Optionally it is determined that the mode of the redundancy versions in the downlink traffic channel includes at least one of：According to repetition The identical redundancy versions of the down control channel instruction of transmission determine that the downlink traffic channel for repeating transmission uses The redundancy versions；It is determined respectively according to the not exactly the same redundancy versions for the down control channel instruction for repeating transmission each The redundancy versions of downlink traffic channel scheduled in down control channel, and terminate repeat transmit the down control channel it Afterwards, the redundancy versions which is indicated using last time by the down control channel；According to repetition transmission The not exactly the same redundancy versions of down control channel instruction determine the downlink scheduled in each down control channel respectively The redundancy versions of Traffic Channel, and after terminating repetition and transmitting the down control channel, the downlink traffic channel is with last The initial value once recycled as redundancy versions by the redundancy versions that the down control channel indicates, wherein the redundancy versions follow Ring is what preset or base station configured.

Optionally, which, which specifies in downlink data region in PRB, repeats to transmit, In, which is configured by base station by high-level signaling.

According to another embodiment of the invention, a kind of data transmission method is additionally provided, Fig. 2 is implemented according to the present invention The flowchart 2 of a kind of data transmission method of example, as shown in Fig. 2, the flow includes the following steps：

Step S202, during terminal repeats to receive and carries the down control channel of Downlink Control Information, detection the Two predeterminable events；

Step S204, after detecting second predeterminable event, which, which terminates, repeats to receive the down control channel.

Optionally, after detecting second predeterminable event, which, which terminates, repeats to receive the down control channel, wraps Include at least one of：Before the feedback information of the downlink traffic channel of the down control channel scheduling transmitted and received, weight The down control channel for dispatching the downlink traffic channel is received in multiple connection；The uplink of the down control channel scheduling transmitted and received Before Traffic Channel, repeat to receive the down control channel for dispatching the reverse link traffic channel；Repetition receives downlink control letter Road is until the number that the repetition receives reaches preset value X.

Optionally, the initial time unit of the downlink traffic channel of the down control channel scheduling of reception is：With reception Time quantum to the first down control channel in the down control channel for repeating transmission is identical, wherein the time quantum It is one of the following：Subframe subframe, Transmission Time Interval TTI, slot s lot, mini-slot mini-slot.

Optionally, which repeats to receive since initial time unit, terminates and repeats to receive the lower industry The method of business channel includes at least one of：Receiving, the downlink traffic channel is correct, and sends to the downlink traffic channel Feedback information be ACK after, stop receive the downlink traffic channel；It is more than in the number for repeating to receive the downlink traffic channel When preset value Y, stop receiving the downlink traffic channel.

Optionally, which is one of the following：Predefined single value；It is taken according to what TTI length determined Value；Base station is indicated by physical layer signaling or the value of high-level signaling configuration.

Optionally, the mode for sending the feedback information includes at least one of：From the downlink business for repeating to receive Time quantum n+k after the initial time unit n of channel starts, and each time quantum sends the feedback information, wherein should K is the integer more than 0；It is opened from the time quantum n+k after the initial time unit n for the downlink traffic channel for repeating to receive Begin, the feedback information is sent per M time quantum, wherein the value of the M is what preset or base station configured；It is connect from repetition After the initial time unit n of the downlink traffic channel received the feedback is sent in the time quantum for meeting l mod C=0 Information, wherein the l indexes for time quantum, and the value of the C is what preset or base station configured.

Optionally, the Downlink Control Information of the down control channel carrying of repetition reception is in each time quantum：It is interior It is different to hold identical Downlink Control Information or partial bit domain content, wherein the different bit field of content include with down toward It is one of few：Redundancy versions, modulation coding scheme.

Optionally it is determined that the mode of the redundancy versions in the reverse link traffic channel of the terminal includes at least one of：Root It is determined according to the identical redundancy versions for the down control channel instruction for repeating transmission, repeats the downlink traffic channel of transmission Use the redundancy versions；It is true according to the not exactly the same redundancy versions difference for the down control channel instruction for repeating transmission The redundancy versions of reverse link traffic channel scheduled in fixed each down control channel, and receive the down control channel terminating Later, the redundancy versions which is indicated using last time by the down control channel；It is transmitted according to repetition The down control channel instruction not exactly the same redundancy versions determine the upper industry scheduled in each down control channel The redundancy versions of business channel, and after terminating repetition and receiving the down control channel, the reverse link traffic channel is with last The initial value that the secondary redundancy versions indicated by the down control channel are recycled as redundancy versions, wherein the redundancy versions recycle It is configured for preset or base station.

Optionally, the transmission initial time of the reverse link traffic channel of down control channel scheduling is determined in the following manner Unit is：Determine that sending time unit, wherein time quantum n are the weight received for the first time according to uplink scheduling timing relationship n+k The time quantum of the down control channel transmitted again, wherein the k is integer more than 0, wherein the time quantum be it is following it One：Subframe subframe, Transmission Time Interval TTI, slot s lot, mini-slot mini-slot.

Below in conjunction with a preferred embodiment of the present invention will be described in detail.

A kind of data transmission method has been recorded in the preferred embodiment of the present invention to realize ultrahigh reliability and ultralow time delay Demand so that data transmission can under the premise of meeting user plane ultralow time delay, realize high reliability.

Compared with the relevant technologies, this preferred embodiment is believed by repeating transmission down control channel and downlink business simultaneously Road, and repeat always before not receiving feedback information to transmit the down control channel and downlink traffic channel, and do not having There is the method for repeating transmission down control channel before the reverse link traffic channel for receiving scheduling and repeating to send reverse link traffic channel, Traditional repetitive transmission method is avoided first to repeat transmission down control channel and transmit scheduled Traffic Channel again to lead to reach The problem for causing time delay larger, and overcome needs according to hybrid automatic repeat-request (Hybrid Automatic Repeat Request, referred to as HARQ) delay problem caused by re-transmission legacy data is periodically carried out, it can realize and meet low time delay premise On the basis of promoted reliability purpose.

The characteristics of in order to more fully hereinafter understand the embodiment of the present invention and technology contents record the present invention preferably below Four specific embodiments of embodiment.

Specific embodiment 1

Illustrate first, the Receive but failed in attached drawing indicate " reception failure ", and the technology that DTX is indicated contains Justice is " control channel missing inspection ".

Fig. 3 is the schematic diagram of according to specific embodiment 1 dispatching downlink Data duplication transmission, as shown in figure 3, base station is given UE1 sends downlink data.It is (excellent to repeat transmission PDCCH before not receiving to the HARQ-ACK of its scheduled Traffic Channel for base station Choosing also repeats to send Traffic Channel simultaneously).When receiving feedback information for the first time and after be ACK, stop repeating to send PDCCH and PDSCH；When receiving feedback information for the first time and after be NACK, stop repeating to send PDCCH and at the same time continuing to repeat to send industry Business channel stops Data duplication and sends after receiving ACK.

Specifically, first since TTI#n, base station repeats to send the down control channel PDCCH of dispatching downlink data, together When since TTI#n, repeat send scheduling downlink data.The content of PDCCH carryings at this time is identical, the identical expression transmission of NDI Be not new data, while RV, MCS are also identical, PDSCH resource locations and content all same, UE receive data use it is identical Redundancy versions merge；Or the content of PDCCH carryings at this time is not exactly the same, the identical expression transmission of NDI is not new Data, MCS is identical, PDSCH resource locations and content all same, but RV is different, and UE receives data and uses different redundancies Version merges, and the RV methods of determination of the PDSCH still received after being terminated for PDCCH are：It is indicated according to last time RV It is last before being terminated using same redundant versions merging or using the starting RV that last time RV indicates to recycle as RV, such as PDCCH One time RV is designated as 2, then the RV for the PDSCH that PDCCH is continued to after terminating uses same redundant versions merging for 2, or pre- If RV cycles be 0-1-2-3, then the RV of PDSCH that PDCCH is continued to after terminating be initiated with 2 recycled according to RV it is different Redundancy versions merge.At this time when in TTI#n PDCCH do not detected by UE, without waiting for after detecting DTX to TTI#n+k from TTI#n+k+1 or the TTI after it are sent again, just repeat to send the identical PDCCH of content and its scheduling since TTI#n+1 PDSCH.If the feedback information that base station receives for the first time is ACK, stop repeating to send PDCCH and PDSCH, repetition transfers At；If the feedback information that base station receives for the first time is NACK, stop repeating to send PDCCH, continues to repeat to send PDSCH, if Received before maximum iterative transfer times X feedback information be ACK when, stop repeat send PDSCH, repetition be transmitted, if most When not yet to receive feedback information before big iterative transfer times X be ACK, stop repeating transmission PDSCH, repeat transmission failure.

Optionally, in order to realize that UE can repeatedly receive and meet ultralow demand, the maximum of regulation PDCCH is needed to repeat The maximum number of repetitions Y of number X and/or PDSCH.Preferred X and/or Y values be set 1,2,3,4,5,6,8,10,12, At least one of 16,20 }.In not up to maximum number of repetitions, PDCCH repeats transmission can be by the PDSCH's scheduled in it Any one in feedback information NACK and ACK terminates, and PDSCH repeatedly transmits the ACK information that can be fed back to it and terminates.X and/ Or the value of Y, it is predefined value, is such as determined according to the length value of TTI or subframe or slot or mini-slot, Such as by taking TTI=125us as an example, Y=8 and/or X=8 at most repeat to transmit 8 times to reach 1ms delay requirement thresholdings；Or, X And/or the value of Y is indicated by physical layer signaling (such as DCI) or high-level signaling (such as SIB or RRC) configures.

Optionally, when determining the resource of ACK/NACK transmission, such as it is PUCCH to carry the resource of the ACK/NACK, is kept Identical resource location is used to repeating the when of transmitting next Traffic Channel feeding back ACK/NACK.The resource location can be believed by high level (such as SIB or RRC) is enabled to configure and/or determined according to the implicit mapping in the down control channel resources position of dispatching downlink channel. When determining PUCCH resource according to down control channel, determine no PDCCH only have the PUCCH resource position of the subframe of PDSCH with There is the subframe of PDCCH to insinuate determining PUCCH resource position before identical.

PDCCH in 1 blind Detecting TTI#n of terminal UE continues the blind Detecting PDCCH in TTI#n+1 if not detecting. Since it is first detect the TTI#m of PDCCH, repeat receive PDCCH and its scheduling PDSCH, according to what is detected in TTI#m PDSCH and according to timing relationship on TTI#m+k feeding back ACK or nack message.If the PDSCH that UE1 is demodulated in TTI#m is correctly anti- ACK is presented, then this repeats to receive and terminate；If UE1 demodulates the PDSCH error feedback NACK in TTI#m, terminal continues to repeat to receive PDSCH, this repeats to be transmitted if receiving correct PDSCH and feeding back ACK before maximum number of repetitions X, if in maximum weight Correct PDSCH is not yet received before multiple X and feeds back NACK, stops repeating to receive PDSCH, this repeats transmission failure.The present embodiment According to Fig.3, m=n+1, k=1.

By the scheme of this specific embodiment 1, the present invention by repeating transmission down control channel and downlink business simultaneously The method of channel can be realized to reach the problem for avoiding traditional repetitive transmission method time delay larger and meet low time delay The purpose of reliability is promoted on the basis of premise.

Specific embodiment 2

Fig. 4 is the schematic diagram of according to specific embodiment 2 dispatching uplink Data duplication transmission, as shown in figure 4, base station is dispatched UE1 repeats to send upstream data.Base station repeats to send the PDCCH (preferably scheduling repeats the PUSCH sent) of carrying UL grant, After base station receives PUSCH (no matter receiving correct or wrong) for the first time, stop repeating to send PDCCH.If base station demodulates PUSCH mistakes, then feed back NACK, and UE1 continues to repeat to send PUSCH；If it is correct that base station demodulates PUSCH, feeding back ACK, UE1 is whole It only repeats to send PUSCH.

Specifically, first since TTI#n, base station repeats to send the down control channel PDCCH of dispatching uplink data.This When PDCCH carryings content it is identical, NDI is identical, and indicate transmission is not new data, while RV, MCS are also identical, PUSCH resources Position and content all same, UE are received data and are merged using identical redundancy versions；Or PDCCH carryings at this time is interior Hold it is not exactly the same, NDI it is identical indicate transmission be not new data, MCS is identical, PUSCH resource locations and content all same, but It is RV differences, UE is received data and merged using different redundancy versions, is still received after being terminated for PDCCH The RV methods of determination of PUSCH are：It is indicated using same redundant versions merging or with last time RV according to last time RV instructions Last time RV is designated as 2 before being terminated as the starting RV of RV cycles, such as PDCCH, then PDCCH is continued to after terminating The RV of PUSCH is 2 use same redundant versions mergings or preset RV cycles are 0-1-2-3, then PDCCH continues after terminating The RV of the PUSCH of reception is initiated with 2 and recycles different redundancy versions merging according to RV.At this time when in TTI#n PDCCH not by UE is detected, is sent again without waiting for the subframe after detecting DTX to TTI#n+k from subframe n+k+1 or after it, from subframe N+1 starts just to repeat to send the identical PDCCH of content.When base station receives PUSCH for the first time, stop repeating to send PDCCH.If solution Adjust PUSCH correctly then to UE feeding back ACKs, terminal repeats to send PUSCH completions after receiving ACK；If base station demodulates PUSCH mistakes To UE feed back NACK, UE continue repeat send PUSCH, if received before maximum iterative transfer times X feedback information be ACK when, Stop repeating to send PUSCH, repetition is transmitted, if it is ACK not yet to receive feedback information before maximum iterative transfer times X When, stop repeating transmission PUSCH, repeats transmission failure.

Optionally, in order to realize that UE can repeatedly send and meet ultralow demand, the maximum of regulation PDCCH is needed to repeat The maximum number of repetitions Y of number X and/or PUSCH.Preferred X and/or Y values be set 1,2,3,4,5,6,8,10,12, At least one of 16,20 }.In not up to maximum number of repetitions, PDCCH repeats transmission can be by receiving scheduled in it PUSCH terminate, PUSCH repeatedlys transmit it can be fed back ACK information termination.The value of X and/or Y is predefined Value, such as according to the determination of the length value of TTI or subframe or slot or mini-slot, such as by taking TTI=125us as an example, Y=8 and/or X=8 at most repeats to transmit 8 times to reach 1ms delay requirement thresholdings；Or, the value of X and/or Y are believed by physical layer It enables (such as DCI) to indicate or high-level signaling (such as SIB or RRC) configures.

Optionally, transmission PUSCH is repeated for uplink, when being carried by PDCCH to its feeding back ACK/NACK, base station can be with PDCCH is terminated by receiving PUSCH (no matter correctness) to repeat to transmit, therefore base station can to PUSCH feedbacks NACK/NACK To save one.It repeats to transmit to terminate PUSCH for example, base station only needs feeding back ACK, base station is without sending NACK at this time.Again For example, base station only needs feedback NACK to notify UE to continue to repeat to send PUSCH, think base station when UE does not receive NACK Correctly received PUSCH is terminated and is repeated to send PUSCH, and base station is without sending ACK at this time.

PDCCH in 1 blind Detecting TTI#n of terminal UE continues the blind Detecting PDCCH in TTI#n+1 if not detecting. Since it is first detect the TTI#m of PDCCH, repeat receive PDCCH, according to the PDSCH detected in TTI#m and according to timing Relationship sends PUSCH on TTI#m+k and repeats to send PUSCH in TTI later.If base station demodulates in TTI#m+k PUSCH is correctly and in TTI#m+k+k1 to UE1 feeding back ACKs, then this repeats to send PUSCH terminations；If base station demodulates TTI#m+k In PUSCH mistakes and TTI#m+k+k1 to UE1 feed back NACK, terminal continue repeat send PUSCH, if maximum repeat time The preceding base stations number X receive correct PUSCH, and simultaneously then this repetition is transmitted feeding back ACK, is not yet received if repeating the preceding base stations X in maximum Correct PUSCH simultaneously feeds back NACK, and UE stops repeating to send PUSCH after reaching maximum number of repetitions, this repeats transmission failure. The present embodiment according to Fig.4, m=n+1, k=1, k1=1.

Scheme through this embodiment, the present invention by repeating transmission down control channel and reverse link traffic channel simultaneously Method can be realized to reach the problem for avoiding traditional repetitive transmission method time delay larger and meet low time delay premise On the basis of promoted reliability purpose.

Specific embodiment 3

Fig. 5 is the schematic diagram of according to specific embodiment 3 dispatching downlink Data duplication transmission, as shown in figure 5, base station is given UE1 sends downlink data.It is (excellent to repeat transmission PDCCH before not receiving to the HARQ-ACK of its scheduled Traffic Channel for base station Choosing also repeats to send Traffic Channel simultaneously), and the data area in TTI also repeats to send PDCCH.When receiving feedback for the first time Information and after being ACK, stops repeating to send PDCCH and PDSCH；When receiving feedback information for the first time and after be NACK, stop It repeats to send PDCCH and at the same time continuing to repeat to send Traffic Channel, after receiving ACK, stopping Data duplication being sent.

Specifically, first since TTI#n, base station repeats to send the down control channel PDCCH of dispatching downlink data, together When since TTI#n, repeat the downlink data for sending scheduling, at this time in TTI#n data area using specially to enjoy PRB resources (non- The resource of control area) transmission PDCCH is also repeated, specially enjoying PRB resources and matched by high-level signaling RRC in preferred data area It sets.The content of PDCCH carryings at this time is identical, and the identical expression transmission of NDI is not new data, while RV, MCS are also identical, PDSCH Resource location and content all same, UE are received data and are merged using identical redundancy versions.At this time when in TTI#n PDCCH do not detect by UE, without waiting for after detecting DTX to TTI#n+k from the TTI after TTI#n+k+1 or its again It sends, the PDSCH for sending content identical PDCCH and its scheduling is just repeated since TTI#n+1.If base station receives anti-for the first time When feedforward information is ACK, stop repeating to send PDCCH and PDSCH, repetition is transmitted；If the feedback information that base station receives for the first time For NACK when, stop repeat send PDCCH, continue repeat send PDSCH, if receiving feedback before maximum iterative transfer times X When information is ACK, stop repeating to send PDSCH, repetition is transmitted, if not yet receiving before maximum iterative transfer times X anti- When feedforward information is ACK, stops repeating transmission PDSCH, repeat transmission failure.

Optionally, when receiving NACK or ACK termination PDCCH repetition transmission, for control area in identical TTI PDCCH, which repeats to send, to be stopped immediately, and repeating transmission for the PDCCH of data area specially enjoyed in PRB resources can be immediately Stop, due to this is specially enjoyed at this time PRB be used as other UE transmission using dispatch had little time, power ascension can be passed through The power that this is specially enjoyed to PRB is used as other data services.

PDCCH in 1 blind Detecting TTI#n of terminal UE continues the blind Detecting PDCCH in TTI#n+1 if not detecting. Since it is first detect the TTI#m of PDCCH, repeat receive PDCCH and its scheduling PDSCH, according to what is detected in TTI#m PDSCH and according to timing relationship on TTI#m+k feeding back ACK or nack message.If the PDSCH that UE1 is demodulated in TTI#m is correctly anti- ACK is presented, then this repeats to receive and terminate；If UE1 demodulates the PDSCH error feedback NACK in TTI#m, terminal continues to repeat to receive PDSCH, this repeats to be transmitted if receiving correct PDSCH and feeding back ACK before maximum number of repetitions X, if in maximum weight Correct PDSCH is not yet received before multiple X and feeds back NACK, stops repeating to receive PDSCH, this repeats transmission failure.The present embodiment According to Fig.5, m=n+1, k=1.

Scheme through this embodiment, the present invention by repeating transmission down control channel and downlink traffic channel simultaneously simultaneously And the method for encrypted transmission control channel, to reach the problem for avoiding traditional repetitive transmission method time delay larger, Neng Goushi Meet the purpose that reliability is promoted on the basis of low time delay premise now.

Specific embodiment 4

Fig. 6 is the schematic diagram of according to specific embodiment 4 dispatching uplink Data duplication transmission, as shown in fig. 6, base station is dispatched UE1 repeats to send upstream data.Base station repeats to send the PDCCH (preferably scheduling repeats the PUSCH sent) of carrying UL grant, And the downlink data region in TTI also repeats to send PDCCH.When base station receives no matter PUSCH (receives correct go back for the first time It is mistake) after, stop repeating to send PDCCH.If base station demodulates PUSCH mistakes, NACK is fed back, UE1 continues to repeat to send PUSCH；If it is correct that base station demodulates PUSCH, feeding back ACK, UE1, which is terminated, to be repeated to send PUSCH.

Specifically, first since TTI#n, base station repeats to send the down control channel PDCCH of dispatching uplink data, this When in TTI#n data area also repeat transmission PDCCH, preferred number using PRB resources (resource in non-controlling region) are specially enjoyed According to specially enjoying PRB resources and configured by high-level signaling RRC in region.The content of PDCCH carryings at this time is identical, and the identical expressions of NDI pass Defeated is not new data, while RV, MCS are also identical, PUSCH resource locations and content all same, and UE receives data and uses phase Same redundancy versions merge.At this time when in TTI#n PDCCH do not detected by UE, without waiting for being detected to TTI#n+k Subframe after DTX from subframe n+k+1 or after it is sent again, and it is identical that transmission content is just repeated since subframe n+1 PDCCH.When base station receives PUSCH for the first time, stop repeating to send PDCCH.To UE feeding back ACKs if demodulating PUSCH correctly, eventually End repeats to send PUSCH completions after receiving ACK；NACK is fed back to UE if base station demodulates PUSCH mistakes, UE continues to repeat to send PUSCH, if received before maximum iterative transfer times X feedback information be ACK when, stop repeat send PUSCH, repetition transfer At, if not yet received before maximum iterative transfer times X feedback information be ACK when, stop repeat transmission PUSCH, repeat transmit Failure.

Optionally, base station is when receiving PUSCH termination PDCCH repetition transmission, for control area in identical TTI PDCCH, which repeats to send, to be stopped immediately, and repeating transmission for the PDCCH of data area specially enjoyed in PRB resources can be immediately Stop, due to this is specially enjoyed at this time PRB be used as other UE transmission using dispatch had little time, power ascension can be passed through The power that this is specially enjoyed to PRB is used as other data services.

PDCCH in 1 blind Detecting TTI#n of terminal UE continues the blind Detecting PDCCH in TTI#n+1 if not detecting. Since it is first detect the TTI#m of PDCCH, repeat receive PDCCH, according to the PDSCH detected in TTI#m and according to timing Relationship sends PUSCH on TTI#m+k and repeats to send PUSCH in TTI later.If base station demodulates in TTI#m+k PUSCH is correctly and in TTI#m+k+k1 to UE1 feeding back ACKs, then this repeats to send PUSCH terminations；If base station demodulates TTI#m+k In PUSCH mistakes and TTI#m+k+k1 to UE1 feed back NACK, terminal continue repeat send PUSCH, if maximum repeat time The preceding base stations number X receive correct PUSCH, and simultaneously then this repetition is transmitted feeding back ACK, is not yet received if repeating the preceding base stations X in maximum Correct PUSCH simultaneously feeds back NACK, and UE stops repeating to send PUSCH after reaching maximum number of repetitions, this repeats transmission failure. The present embodiment according to Fig.6, m=n+1, k=1, k1=1.

Scheme through this embodiment, the present invention by repeating transmission down control channel and reverse link traffic channel simultaneously simultaneously And the method for encrypted transmission control channel, to reach the problem for avoiding traditional repetitive transmission method time delay larger, Neng Goushi Meet the purpose that reliability is promoted on the basis of low time delay premise now.

Through the above description of the embodiments, those skilled in the art can be understood that according to above-mentioned implementation The method of example can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but it is very much In the case of the former be more preferably embodiment.Based on this understanding, technical scheme of the present invention is substantially in other words to existing The part that technology contributes can be expressed in the form of software products, which is stored in a storage In medium (such as ROM/RAM, magnetic disc, CD), including some instructions are used so that a station terminal equipment (can be mobile phone, calculate Machine, server or network equipment etc.) execute method described in each embodiment of the present invention.

Embodiment two

A kind of data transmission device is additionally provided in the present embodiment, and the device is real for realizing above-described embodiment and preferably Mode is applied, repeating no more for explanation had been carried out.As used below, the soft of predetermined function may be implemented in term " module " The combination of part and/or hardware.Although device described in following embodiment is preferably realized with software, hardware, or The realization of the combination of software and hardware is also that may and be contemplated.

According to another embodiment of the invention, a kind of data transmission device is provided, base station, the device packet are applied to It includes：

First terminates module, is connected to the repetition transmission module, for after detecting first predeterminable event, terminating Repetition sends the down control channel.

Optionally, which is additionally operable at least one following situations：Receiving the Downlink Control Information institute After the feedback information of the downlink traffic channel of scheduling, stop sending the down control channel；Receiving downlink control letter After reverse link traffic channel scheduled in road, stop sending the down control channel；It is repeating to send the down control channel When repetition transmission times is more than preset value X, stop sending the down control channel, wherein the X is positive integer.

Optionally, when which sends the transmission starting of the downlink traffic channel of down control channel scheduling Between unit be：With repeat to send that the initial time unit of the down control channel is identical, and wherein the time quantum is one of the following： Subframe subframe, Transmission Time Interval TTI, slot s lot, mini-slot mini-slot.

Optionally, which is additionally operable to repeat to send downlink business letter since the initial time unit Road, which, which is additionally operable to terminate at least one following situations, repeats to send the downlink traffic channel：It is receiving After feedback information to the downlink traffic channel is ACK, stop repeating to send the downlink traffic channel；It is repeating to send the downlink When the repetition transmission times of Traffic Channel is more than preset value Y.

According to another embodiment of the invention, a kind of data transmission device is provided, terminal, the device packet are applied to It includes：

Second terminates module, is connected to the repetition receiving module, for after detecting second predeterminable event, terminating Repetition receives the down control channel.

Optionally, which, which is additionally operable to terminate at least one following situations, repeats to receive downlink control letter Road：

Before the feedback information of the downlink traffic channel of the down control channel scheduling transmitted and received, repeats to receive and adjust Spend the down control channel of the downlink traffic channel；

Before the reverse link traffic channel of the down control channel scheduling transmitted and received, repeats to receive and dispatch industry on this The down control channel of business channel；

Repetition receives the down control channel until the number that the repetition receives reaches preset value X.

Optionally, which receives the initial time list of the downlink traffic channel of down control channel scheduling Member is：

It is identical as the time quantum of first down control channel in the down control channel for receiving repetition transmission, In, which is one of the following：Subframe subframe, Transmission Time Interval TTI, slot s lot, mini-slot mini- slot。

Optionally, repetition reception is additionally operable to repeat to receive the downlink traffic channel since initial time unit, this Two termination modules are additionally operable to terminate at least one following situations and repeat to receive the downlink traffic channel：

After receiving, the downlink traffic channel is correct, and transmission is ACK to the feedback information of the downlink traffic channel, stop Only receive the downlink traffic channel；

When the number for repeatedly receiving the downlink traffic channel is more than preset value Y, stop receiving the downlink traffic channel.

It should be noted that above-mentioned modules can be realized by software or hardware, for the latter, Ke Yitong Following manner realization is crossed, but not limited to this：Above-mentioned module is respectively positioned in same processor；Alternatively, above-mentioned modules are with arbitrary The form of combination is located in different processors.

Embodiment three

According to another embodiment of the invention, a kind of base station is additionally provided, Fig. 7 is one kind according to the ... of the embodiment of the present invention The hardware block diagram of base station, as shown in fig. 7, the base station 70 includes：

First communication device 702 sends the down control channel for bearing downlink information for repeating, and is receiving After first termination signal of first processor 704, terminates and repeat to send the down control channel；

The first processor 704 is connected to the first communication device 702, for repeating to send for bearing downlink control During the down control channel of information processed, the first predeterminable event is detected, and after detecting first predeterminable event, to this First communication device 702 sends first termination signal.

Optionally, which is additionally operable to send to the first communication device 702 at least one of situation First termination signal：

When the repetition transmission times for repeatedly sending the down control channel is more than preset value X, wherein the X is positive integer.

Optionally, which is additionally operable to repeat to send the downlink business letter of down control channel scheduling Road, wherein the transmission initial time unit of the downlink traffic channel is：

With repeat to send that the initial time unit of the down control channel is identical, and wherein the time quantum is one of the following： Subframe subframe, Transmission Time Interval TTI, slot s lot, mini-slot mini-slot.

Optionally, which is additionally operable to repeat to send the downlink business since the initial time unit Channel, the first processor 704 are additionally operable to notify the first communication device 702 terminates to repeat to send at least one following situations The downlink traffic channel：

After receiving the feedback information to the downlink traffic channel and being ACK, stop repeating to send the downlink traffic channel；

According to another embodiment of the invention, a kind of terminal is additionally provided, Fig. 8 is one kind according to the ... of the embodiment of the present invention The hardware block diagram of terminal, as shown in figure 8, the terminal 80 includes：

Secondary communication device 802 receives the down control channel for carrying Downlink Control Information for repeating, and is receiving To after the second termination signal of second processor 804, terminates and repeat to receive the down control channel；

Second processor 804 is connected to the secondary communication device 802, in repeat receiving the down control channel process In, detect the second predeterminable event, and after detecting second predeterminable event, to the secondary communication device 802 send this Two termination signals.

Optionally, which is additionally operable to send to the secondary communication device 802 at least one of situation Second termination signal：

Optionally, which is additionally operable to repeat to receive the downlink business letter of down control channel scheduling Road, wherein the initial time unit of the downlink traffic channel of reception is：

Optionally, which is additionally operable to repeat to receive the downlink business since the initial time unit Channel, the second processor 804 are additionally operable to notify the secondary communication device 802 terminates to repeat to receive at least one following situations The downlink traffic channel：

Example IV

The embodiments of the present invention also provide a kind of storage mediums.Optionally, in the present embodiment, above-mentioned storage medium can To be arranged to store the program code for executing following steps：

S1, during base station repeats to send and controls the down control channel of information for bearing downlink, detection first is pre- If event；

S2, after detecting first predeterminable event, which, which terminates, repeats to send the down control channel.

Optionally, storage medium is also configured to store the program code for executing following steps：

S3, during terminal repeats to receive and carries the down control channel of Downlink Control Information, detection second is default Event；

S4, after detecting second predeterminable event, which, which terminates, repeats to receive the down control channel.

Optionally, in the present embodiment, above-mentioned storage medium can include but is not limited to：USB flash disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disc or The various media that can store program code such as CD.

Optionally, in the present embodiment, processor executes above-mentioned implementation according to stored program code in storage medium Method and step in example.

Optionally, the specific example in the present embodiment can refer to described in above-described embodiment and optional embodiment Example, details are not described herein for the present embodiment.

Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored It is performed by computing device in the storage device, and in some cases, it can be with different from shown in sequence execution herein The step of going out or describing, either they are fabricated to each integrated circuit modules or by them multiple modules or Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.

The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims

1. a kind of data transmission method, which is characterized in that the method includes：

During base station repeats to send and controls the down control channel of information for bearing downlink, the first predeterminable event is detected；

2. according to the method described in claim 1, it is characterized in that, after detecting first predeterminable event, the base Termination of standing repeats to send the down control channel, including at least one of：

After receiving the negative acknowledge nack message of the downlink traffic channel scheduled in the Downlink Control Information, stop hair Send the down control channel；

After receiving the reverse link traffic channel scheduled in the down control channel, stop sending the downlink control letter Road；

When the repetition transmission times for repeatedly sending the down control channel is more than preset value X, stop sending the downlink control Channel processed, wherein the X is positive integer.

3. according to the method described in claim 2, it is characterized in that, the downlink traffic channel of down control channel scheduling Sending initial time unit is：

It is identical as the initial time unit of the down control channel is repeatedly sent, wherein the time quantum is one of the following： Subframe subframe, Transmission Time Interval TTI, slot s lot, mini-slot mini-slot.

4. according to the method described in claim 3, it is characterized in that, the downlink traffic channel is opened from the initial time unit Starting weight recurrence is sent, and it includes at least one of to terminate the method for repeating to send the downlink traffic channel：

5. method according to claim 2 or 4, which is characterized in that the value of the X and/or Y is one of the following：

Predefined single value；

The value determined according to TTI length；

The base station is indicated by physical layer signaling or the value of high-level signaling configuration.

6. according to the method described in claim 2, it is characterized in that, detecting whether the base station receives the downlink control letter The mode of the nack message of the scheduled downlink traffic channel of breath includes at least one of：

Since the time quantum n+k after the initial time unit n of the downlink traffic channel is transmitted in repetition, each time is single Member is detected, wherein the k is the integer more than 0；

Since the time quantum n+k after the initial time unit n of the downlink traffic channel is transmitted in repetition, per M time Unit is detected, wherein the k is the integer more than 0, and the value of the M is what preset or base station configured；

After repeating to transmit the initial time unit n of the downlink traffic channel in the time quantum for meeting l mod C=0 It is detected, wherein the l indexes for time quantum, and the value of the C is what preset or base station configured.

7. according to the method described in claim 2, it is characterized in that, the downlink for repeating the down control channel sent carrying Control information is in each time quantum：

The identical Downlink Control Information of content, or

Partial bit domain content is different, wherein the different bit field of content includes at least one of：Redundancy versions, modulation are compiled Code mode.

8. the method according to the description of claim 7 is characterized in that determining the side of the redundancy versions in the downlink traffic channel Formula includes at least one of：

It is determined according to the identical redundancy versions for the down control channel instruction for repeating transmission, repeats the downlink of transmission Traffic Channel uses the redundancy versions；

Each downlink is determined respectively according to the not exactly the same redundancy versions for the down control channel instruction for repeating transmission The redundancy versions of downlink traffic channel scheduled in control channel, and terminate repeat transmit the down control channel it Afterwards, the redundancy versions that the downlink traffic channel is indicated using last time by the down control channel；

Each downlink is determined respectively according to the not exactly the same redundancy versions for the down control channel instruction for repeating transmission The redundancy versions of downlink traffic channel scheduled in control channel, and terminate repeat transmit the down control channel it Afterwards, the downlink traffic channel is recycled by the redundancy versions that the down control channel indicates as redundancy versions using last time Initial value, wherein redundancy versions cycle is what preset or base station configured.

9. according to the method described in claim 2, it is characterized in that, the down control channel for repeating to send is in downlink It is specified in data area in PRB and repeats to transmit, wherein the specified PRB resources are configured by base station by high-level signaling.

10. a kind of data transmission method, which is characterized in that the method includes：

During terminal repeats to receive and carries the down control channel of Downlink Control Information, the second predeterminable event is detected；

After detecting second predeterminable event, the terminal, which terminates, to be repeated to receive the down control channel.

11. described according to the method described in claim 10, it is characterized in that, after detecting second predeterminable event Terminal, which terminates, to be repeated to receive the down control channel, including at least one of：

After sending the downlink traffic channel feedback nack message to the down control channel scheduling received, terminates and repeat to connect Receive the down control channel for dispatching the downlink traffic channel；

After the reverse link traffic channel of the down control channel scheduling transmitted and received, terminates to repeat to receive and dispatch the uplink The down control channel of Traffic Channel；

12. according to the method for claim 11, which is characterized in that the lower industry of the down control channel scheduling of reception Business channel initial time unit be：

It is identical as the time quantum of first down control channel in the down control channel for receiving repetition transmission, In, the time quantum is one of the following：Subframe subframe, Transmission Time Interval TTI, slot s lot, mini-slot mini- slot。

13. according to the method for claim 12, which is characterized in that the downlink traffic channel is since initial time unit It repeats to receive, it includes at least one of to terminate the method for repeating to receive the downlink traffic channel：

14. the method according to claim 11 or 13, which is characterized in that X the and/or Y values are one of the following：

Predefined single value；

The value determined according to TTI length；

Base station is indicated by physical layer signaling or the value of high-level signaling configuration.

15. according to the method for claim 11, which is characterized in that the mode for sending the feedback nack message includes following At least one：

Since the time quantum n+k after the initial time unit n for the downlink traffic channel for repeating to receive, Mei Geshi Between unit send the nack message, wherein the k is integer more than 0；

It is a per M since the time quantum n+k after the initial time unit n for the downlink traffic channel for repeating to receive Time quantum sends the nack message, wherein the value of the M is what preset or base station configured；

From after the initial time unit n of downlink traffic channel for repeating to receive in the time quantum for meeting l mod C=0 Send the nack message, wherein the l indexes for time quantum, and the value of the C is what preset or base station configured.

16. according to the method for claim 11, which is characterized in that described to repeat under the down control channel received carrying Row controls information：

The identical Downlink Control Information of content, or

17. according to the method for claim 16, which is characterized in that determine the redundancy in the reverse link traffic channel of the terminal The mode of version includes at least one of：

Each downlink is determined respectively according to the not exactly the same redundancy versions for the down control channel instruction for repeating transmission The redundancy versions of reverse link traffic channel scheduled in control channel, and after terminating the reception down control channel, institute State the redundancy versions that reverse link traffic channel is indicated using last time by the down control channel；

Each downlink control is determined according to the not exactly the same redundancy versions for the down control channel instruction for repeating transmission The redundancy versions of reverse link traffic channel scheduled in channel, and after terminating repetition and receiving the down control channel, institute State that reverse link traffic channel recycles using the redundancy versions that last time is indicated by the down control channel as redundancy versions just Initial value, wherein the redundancy versions cycle is what preset or base station configured.

18. according to the method for claim 11, which is characterized in that determine the down control channel tune in the following manner The transmission initial time unit of the reverse link traffic channel of degree is：

Determine that sending time unit, wherein time quantum n are that the repetition received for the first time passes according to uplink scheduling timing relationship n+k The time quantum of defeated down control channel, wherein the k is integer more than 0, wherein the time quantum be it is following it One：Subframe subframe, Transmission Time Interval TTI, slot s lot, mini-slot mini-slot.

19. according to the method for claim 11, which is characterized in that the down control channel for repeating to receive is in lower line number It repeats to transmit in PRB according to specifying in region, wherein the specified PRB resources are configured by base station by high-level signaling.

20. a kind of data transmission device, it is applied to base station, which is characterized in that described device includes：

Transmission module is repeated, is used for during base station repeats to send and controls the down control channel of information for bearing downlink, Detect the first predeterminable event；

First terminates module, repeats to send the downlink control letter for after detecting first predeterminable event, terminating Road.

21. device according to claim 20, which is characterized in that the first termination module is additionally operable to following situations at least One of：

After the nack message for receiving the downlink traffic channel scheduled in the Downlink Control Information, under stopping transmission is described Row control channel；

22. device according to claim 21, which is characterized in that the transmission module that repeats sends the downlink control letter The transmission initial time unit of downlink traffic channel of road scheduling is：

23. device according to claim 22, which is characterized in that the transmission module that repeats is additionally operable to from when the starting Between unit start to repeat to send the downlink traffic channel, the first termination module is additionally operable at least one following situations eventually It only repeats to send the downlink traffic channel：

24. a kind of data transmission device, it is applied to terminal, which is characterized in that described device includes：

Receiving module is repeated, for during terminal repeats to receive and carries the down control channel of Downlink Control Information, examining Survey the second predeterminable event；

Second terminates module, repeats to receive the downlink control letter for after detecting second predeterminable event, terminating Road.

25. device according to claim 24, which is characterized in that it is described second termination module be additionally operable to following situations extremely One of few terminate repeats to receive the down control channel：

26. device according to claim 25, which is characterized in that the receiving module that repeats receives the downlink control letter The initial time unit of downlink traffic channel of road scheduling is：

27. device according to claim 26, which is characterized in that the repetition, which receives, to be additionally operable to open from initial time unit The downlink traffic channel is received in starting weight multiple connection, and the second termination module is additionally operable to terminate at least one following situations and repeats to connect Receive the downlink traffic channel：

28. a kind of base station, which is characterized in that the base station includes：

First communication device sends the down control channel for bearing downlink information for repeating, and is receiving at first After the first termination signal for managing device, terminates and repeat to send the down control channel；

The first processor, during for sending the down control channel for bearing downlink control information in repetition, inspection The first predeterminable event is surveyed, and after detecting first predeterminable event, described first is sent to the first communication device Termination signal.

29. base station according to claim 28, which is characterized in that the first processor is additionally operable at least one of Situation sends first termination signal to the first communication device：

After the nack message for receiving the downlink traffic channel scheduled in the Downlink Control Information；

30. base station according to claim 29, which is characterized in that the first communication device is additionally operable to repeat described in transmission The downlink traffic channel of down control channel scheduling, wherein the transmission initial time unit of the downlink traffic channel is：

31. base station according to claim 30, which is characterized in that the first communication device is additionally operable to from when the starting Between unit start to repeat to send the downlink traffic channel, the first processor is additionally operable to notify at least one following situations The first communication device, which terminates, to be repeated to send the downlink traffic channel：

32. a kind of terminal, which is characterized in that the terminal includes：

Secondary communication device receives the down control channel for carrying Downlink Control Information for repeating, and is receiving second After second termination signal of processor, terminates and repeat to receive the down control channel；

Second processor, for during repeating to receive the down control channel, detecting the second predeterminable event, and detecting To after second predeterminable event, second termination signal is sent to the secondary communication device.

33. terminal according to claim 32, which is characterized in that the second processor is additionally operable at least one of Situation sends second termination signal to the secondary communication device：

After the feedback nack message for sending the downlink traffic channel dispatched to the down control channel received；

34. terminal according to claim 33, which is characterized in that the secondary communication device is additionally operable to repeat described in reception The downlink traffic channel of down control channel scheduling, wherein the initial time unit of the downlink traffic channel of reception is：

35. terminal according to claim 34, which is characterized in that the secondary communication device is additionally operable to from when the starting Between unit start to repeat to receive the downlink traffic channel, the second processor is additionally operable to notify at least one following situations The secondary communication device, which terminates, to be repeated to receive the downlink traffic channel：